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Which part of the periodic table square tells you the number of protons and electrons?
Wiki User
∙ 12y ago
the mass number i believe
Wiki User
∙ 12y ago
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How do you find neutrons and protons on a periodic table?
Everything is made up of atoms. An atom is the smallest amount you have have of an Element (you find these on the periodic table of elements) The atom is made of a nucleus and shells. Inside the nucleus are protons and neutrons. And in the shells are electrons.
How many protons neutrons and electrons are present in one atom phosphorus?
There are 15 protons and 16 neutrons in the phosphorus atom. The atomic number, which is at the top of the square, represent the number of protons. In a neutral atom, there are the same amount of protons as well as electrons so there are 15 protons and 12 electrons. You can find the number of neutrons by subtracting the atomic number from the atomic mass and round to the nearest whole number. In this case, the atomic number would be 15 and the atomic mass is 31. 31 minus 15 is 16 neutrons total.
Does the number of electrons equal the number of protons?
The number of neutrons in an atom can vary....ie an elements can exist with atoms that have the same number of electrons (and so are chemically the same) but have a different number of neutrons. These are called isotopes.
What is the atomic number where is it located in the periodic table?
The order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element. It is located in the upper left hand corner of every box on the periodic table.
How can you find the number of protons and electrons and neutrons in an atom or ion?
Number of protons = Atomic numberNumber of electrons = Atomic number minus the charge (if it is ion)Number of neutrons = Mass number minus Atomic numberNumber of Protons:Look at the periodic table. Each element is assigned a number called the atomic number -- it is usually written in large on the periodic table. That number tells you the number of protons in the nucleus of each element. The atomic number is always the same as the number of protons. The number of protons in the nucleus uniquely identifies an element.Number of Electrons:The number of electrons in an element can change. For a neutral atom (net charge of zero), the number of protons is exactly equal to the number of electrons. So the number of electrons is also the same as the atomic number.However, it is possible to remove electrons and not change the identity of an element. These are called ions. The charge on the ion tells you the number of electrons -- the number of electrons is the atomic number minus the charge on the ion if it's an ion. If the charge is positive, subtract that number from the atomic number to get the number of electrons (with a positively charged ion, you will then have less electrons than protons).If the charge is negative, subtract the charge (but note you are subtracting a negative number, which is the same as adding the magnitude of the charge to the atomic number (with a negatively charged ion, you with then have more electrons than protons).Number of Neutrons:The number of neutrons in an element can also vary, and if two atoms of the same element have different numbers of neutrons, then they are called isotopes. To figure out how many neutrons are in the nucleus, you must know the mass number. Note that you cannot determine the number of neutrons for an element, only for one isotope of that element -- so you have to know which isotope you are being asked about.Usually, a specific isotope is written like this: silicon-30 or carbon-12 or aluminum-26. It can also be written like this though, when using the symbol for the element instead of its full name: 30Si or 12C or 26Al. The number is called the mass number, and the mass number is equal to the sum of the number of protons plus the number of neutrons.So if you know the mass number and you know the atomic number (if you know the name of the element, that tells you the atomic number because each element has only one atomic number), to find the number of neutrons, subtract the mass number from the atomic number.Here are some examples:The element hydrogen (H) has atomic number of 1, so it has one proton in the nucleus, and one electron. The hydrogen ion (H+) has zero electrons, and the hydrogen ion (H-) has 2 electrons. Most hydrogen atoms don't have any neutrons (these are written 1H), but there exists an isotope called deuterium (also 2H) which has one neutron, and another isotope called tritium (also 3H) which has 2 neutrons.The element fluorine (F) has atomic number 9, so it has nine protons. The neutral atom also has 9 electrons, but F is commonly found as a negative ion F-, which has 10 electrons. The most common isotope of fluorine has 10 neutrons, and so it has a mass number of 19, and is written Fluorine-19 or 19F. There also exists another isotope, fluorine-18 or 18F, which only has 9 neutrons, but this isotope is not stable.
What information is listed in an element's square in the periodic table number of electrons or number of neutrons?
the atomic mass and atomic number (number of protons) the number of neutrons is the mass minus the number
How can you calculate the number of electrons in an atom?
For a neutral atom they must have equal numbers of protons and electrons. The atomic number is the number of protons in an atom of an element. Find the atomic number by looking at the periodic table of elements.
Where is the number of protons located?
The number of protons is located in the nucleus of an atom.
What does the number at the top of an carbon element tell you about it?
The number at the top of an element square is referred to as an atomic number. This number provides you with multiple information such as the number of protons and electrons the element has, and with the atomic number it is easier to locate the element on the periodic table. In this case, Carbon's atomic number would be 6, as well as how many protons and electrons are in its nucleus.
How do you find neutrons and protons on a periodic table?
Everything is made up of atoms. An atom is the smallest amount you have have of an Element (you find these on the periodic table of elements) The atom is made of a nucleus and shells. Inside the nucleus are protons and neutrons. And in the shells are electrons.
Where can you find a chart listing the amount of protons nutrons and electrons are in an atom?
All you need is the periodic table and a brain. The number of protons is the atomic number(located at the top left hand side of the square for each element) The number of nutrons is the the Atomic Mass minus the Atomic Number.
How many protons neutrons and electrons are present in one atom phosphorus?
There are 15 protons and 16 neutrons in the phosphorus atom. The atomic number, which is at the top of the square, represent the number of protons. In a neutral atom, there are the same amount of protons as well as electrons so there are 15 protons and 12 electrons. You can find the number of neutrons by subtracting the atomic number from the atomic mass and round to the nearest whole number. In this case, the atomic number would be 15 and the atomic mass is 31. 31 minus 15 is 16 neutrons total.
Does the number of electrons equal the number of protons?
The number of neutrons in an atom can vary....ie an elements can exist with atoms that have the same number of electrons (and so are chemically the same) but have a different number of neutrons. These are called isotopes.
What is the atomic number where is it located in the periodic table?
The order of an element in Mendeleyev's table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element. It is located in the upper left hand corner of every box on the periodic table.
How can you find the number of protons and electrons and neutrons in an atom or ion?
Number of protons = Atomic numberNumber of electrons = Atomic number minus the charge (if it is ion)Number of neutrons = Mass number minus Atomic numberNumber of Protons:Look at the periodic table. Each element is assigned a number called the atomic number -- it is usually written in large on the periodic table. That number tells you the number of protons in the nucleus of each element. The atomic number is always the same as the number of protons. The number of protons in the nucleus uniquely identifies an element.Number of Electrons:The number of electrons in an element can change. For a neutral atom (net charge of zero), the number of protons is exactly equal to the number of electrons. So the number of electrons is also the same as the atomic number.However, it is possible to remove electrons and not change the identity of an element. These are called ions. The charge on the ion tells you the number of electrons -- the number of electrons is the atomic number minus the charge on the ion if it's an ion. If the charge is positive, subtract that number from the atomic number to get the number of electrons (with a positively charged ion, you will then have less electrons than protons).If the charge is negative, subtract the charge (but note you are subtracting a negative number, which is the same as adding the magnitude of the charge to the atomic number (with a negatively charged ion, you with then have more electrons than protons).Number of Neutrons:The number of neutrons in an element can also vary, and if two atoms of the same element have different numbers of neutrons, then they are called isotopes. To figure out how many neutrons are in the nucleus, you must know the mass number. Note that you cannot determine the number of neutrons for an element, only for one isotope of that element -- so you have to know which isotope you are being asked about.Usually, a specific isotope is written like this: silicon-30 or carbon-12 or aluminum-26. It can also be written like this though, when using the symbol for the element instead of its full name: 30Si or 12C or 26Al. The number is called the mass number, and the mass number is equal to the sum of the number of protons plus the number of neutrons.So if you know the mass number and you know the atomic number (if you know the name of the element, that tells you the atomic number because each element has only one atomic number), to find the number of neutrons, subtract the mass number from the atomic number.Here are some examples:The element hydrogen (H) has atomic number of 1, so it has one proton in the nucleus, and one electron. The hydrogen ion (H+) has zero electrons, and the hydrogen ion (H-) has 2 electrons. Most hydrogen atoms don't have any neutrons (these are written 1H), but there exists an isotope called deuterium (also 2H) which has one neutron, and another isotope called tritium (also 3H) which has 2 neutrons.The element fluorine (F) has atomic number 9, so it has nine protons. The neutral atom also has 9 electrons, but F is commonly found as a negative ion F-, which has 10 electrons. The most common isotope of fluorine has 10 neutrons, and so it has a mass number of 19, and is written Fluorine-19 or 19F. There also exists another isotope, fluorine-18 or 18F, which only has 9 neutrons, but this isotope is not stable.
What info can be found in a square on the periodic table?
You can find the Atomic Number, Atomic Mass, The Element symbol and Name and sometimes, the numbers of the electrons in each shell. (for a Bohr model)Also element symbol can be called atomic symbol.The information is the atomic number, also stands for how many electrons and protons there are in that element, also it tells what the atomic abbreviation is and the real name.Each square on the periodic table gives information about an element. On many printed periodic tables we can have atomic number, atomic weight and some other properties like melting and boiling points may also be included.the atomic number and the atomic mass. the atomic number tells you how many neutrons and electrons are in the atom, and the atomic mass tells you the combined amount of protons and neutrons and that element. there is also the symbol of the element, which is the symbol for it's name, and most tables provide the name of the elements.Most basic periodic tables contain four pieces of information for each element: the element's name, symbol, atomic number, and atomic mass. For example, the first element would have an "H", the name Hydrogen, a number 1, and a number 1.0079. H is hydrogen's symbol. The 1 is hydrogen's atomic number, which is the number of protons its nucleus. The 1.0079 is hydrogen's atomic mass.More detailed periodic tables may include number of valence electrons, electron configuration, electronegativity, ionization energy, and other properties.It varies depending on which table you use. A general table will give you the atomic number, element symbol, and atomic mass.The periodic table contains several pieces of information about each element. The element's square on the table includes its atomic symbol, atomic number, and atomic weight.Each square represents the name of the element, the atomic number, and the atomic mass of the element.
How do you compute the number of protons in an element?
What you would do is on the periodic table find the element you are looking for, and than once you find it look on the bottom of its square to see the atomic number. Since atomic numbers can be very long you round it to the nearest whole number. Then you subtract that from the number in the top corner of the square to find the amount of protons in it.
