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Write the full atomic symbols for uranium 235 and 238?
The full atomic symbols for uranium are: Uranium-235: ^235U Uranium-238: ^238U
Is the atomic mass and atomic number the same number?
An Isotope of an element is an atom that has the same number of protons, (number of protons is the defining feature of an element) but different number of neutrons.Because The mass number is the sum of protons and neutrons, different isotopes have different mass numbers.
What is the atomic number of helium's outer shell?
The outer shell of helium does not have an atomic number, that number belongs to helium itself whose atomic number is 2.
What is the atomic number for Ca?
the atomic number of Ca or calcium is 20. That gives it an electron arangement of 2,8,8,2, It has 20 protons and 20 electrons with a full valence electron shell. Hope this helps you
What are the rules for chemical symbles?
Chemical symbols are typically one or two letters long, representing the elements in the periodic table. The first letter is always capitalized, and if there is a second letter, it is always lowercase. Elements can also be represented by their full name.
Write the full atomic symbols for uranium 235 and 238?
The full atomic symbols for uranium are: Uranium-235: ^235U Uranium-238: ^238U
How many neutrons does a platinum atom have?
Platinum atom has 78 protons and electrons; the number of neutrons is variable and depends on the atomic mass of the isotope (atomic mass of the isotope - atomic number = number of neutrons). The stable isotopes have 114, 116, 117, 118, or 120 neutrons.
Is the atomic mass and atomic number the same number?
An Isotope of an element is an atom that has the same number of protons, (number of protons is the defining feature of an element) but different number of neutrons.Because The mass number is the sum of protons and neutrons, different isotopes have different mass numbers.
What is atomic numers 23's full name in the periodic table?
The element with atomic number 23 is VANADIUM.
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 is the atomic number of helium's outer shell?
The outer shell of helium does not have an atomic number, that number belongs to helium itself whose atomic number is 2.
What is the atomic number for Ca?
the atomic number of Ca or calcium is 20. That gives it an electron arangement of 2,8,8,2, It has 20 protons and 20 electrons with a full valence electron shell. Hope this helps you
What element has an atomic number that is one greater than platinum?
Platinum has an atomic number of 78. If you increase the atomic number by one, you find Gold, with an atomic number of 79.
What are the rules for chemical symbles?
Chemical symbols are typically one or two letters long, representing the elements in the periodic table. The first letter is always capitalized, and if there is a second letter, it is always lowercase. Elements can also be represented by their full name.
What is a combination of element symbols that shows the ratio of elements in a compound?
It use the symbols as alphabetical characters for element names for examples: C for Carbon, Cu for copper (Cuprum in latin)And in the lower left of the symbol is atomic number, for C it is 6: 6Cin the upper left of the symbol is the mass number, for C it is 12 : 12C(or with another isotope, 13)Then the full nomination: 612C (write 6, and 12 one column aligned)(answer)My chemistry book states that its a Chemical Formula, "a shorthand representation of the composition of a substance using atomic symbols and numerical subscripts"
How Symbols that represent haploid?
Symbols that represent haploid are "n" and "1n". These symbols are used to indicate the number of sets of chromosomes in a cell or organism, with haploid representing a single set of chromosomes (half the full set).
What element has the atomic number 10?
Neon is a none metal element. atomic number of it is 10.
