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If you only know the number of electrons can you determine the element?
Wiki User
∙ 11y ago
No; not if it is an ion. A chlorine atom, for example, has 17 protons and 17 electrons, but a chlorine ion (like when it is in sodium chloride, which is table salt) has 17 protons and 18 electrons. So, if you see an element with 18 electrons, it could be a chlorine ion, an argon atom, or a potassium ion.
Wiki User
∙ 13y ago
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Wiki User
∙ 13y agoYes, in a neutral atom the number of electrons and protons is equal, and it is the number of protons that determines what element the atom is. So, by looking at the number of electrons you can tell what element it is.
Wiki User
∙ 11y agoNot quite, although electrons do often match the atomic number of an element, the amount of elements can change in ions. Ions are atoms that have lost or gained electrons and also have a charge.
Wiki User
∙ 11y agoYes, as long as it is not an ion. As an example, 10 electrons if not an ion is neon. If the species with 10 electrons is an ion it c ould be Na+ or Mg2+ or Al3+ .
Wiki User
∙ 10y agoYes,
The number of electrons in an atom equals the number of protons. This number defines the element atomic number which is unique for each element.
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What information could you use to determine the atomic number of an unknown element that has the mass number of 22?
If you don't know the element, then you would need the number of electrons in a neutral atom of the element, which would be the same as the atomic number.
What information would you need to know to identify the element?
Just the atomic number would do it - or the number of protons - or the number of electrons
How many electrons does an atom potassium havew?
Finding the number of electrons in an atom is easy. You just have to know the atomic number of the element. The atomic number for Potassium is 19. That means Potassium has 19 electrons.
What the atomic number in a element refers to?
The atomic number of an element is given based on the number of protons in the nucleus of all the atoms of that particular element. This applies regardless of the number of neutrons or electrons in any atom of that element. Atoms are initially classified according to the number of protons in the nucleus of an atom, and this will identify which element the atom is. We know that the number of neutrons a given atom of any element can vary, and these will be classified as isotopes of that element. We also know that the number of electrons in any atom will vary, too. Atoms with a neutral charge will have the same number of electrons as protons, but the number of electrons can vary for a number of reasons. The number of protons, however will allow an investigator to identify an atom as being a particular element, and the atom will be further classified from there according to the number of neutrons and/or electrons it has.
How do you figure out the atomic mass number of an element?
To determine the mass number of a particular isotope of an element, you need to know the number of protons, which is the atomic number of the element, and the number of neutrons. The sum of protons and neutrons is the mass number.
If you know the number of electrons in a neutral atom can you determine what the element is?
Yes, in a neutral atom the number of electrons and protons is equal, and it is the number of protons that determines what element the atom is. So, by looking at the number of electrons you can tell what element it is.
What information could you use to determine the atomic number of an unknown element that has the mass number of 22?
If you don't know the element, then you would need the number of electrons in a neutral atom of the element, which would be the same as the atomic number.
Can you determine whether the atoms are the same element with out looking at the nuclei?
To a certain extent yes. In a balanced element the number of electrons match the number of protons in the core of the element. If electrons have been added or removed (as in an ion) then you would need to know the exact number added/removed, or rebalance the element, in order to determine the specific element.
How do you know how many electrons an element has?
atomic number
What information can you gather knowing the atomic number and mass of an element?
If you know the atomic no. and atomic mass, then the no. of electrons, no. of protons and no. of neutrons can also be determined. Atomic No.=No. of electrons = No. of protons. No. of neutrons=Atomic mass-Atomic no. Also, by no. of electrons you can determine its valency and the no. of valence electrons.
Why are group important in the periodic table?
groups are important in the periodic table because from them we get to know about the chemical and the physical property of an element. we also get to know about the number of electrons in the outer most shell.
How do you determine how many protons are in an element?
Experimentally, I'm not sure, but I know you can look at your periodic chart, the large number over the symbol of each element is teh number of protons in that element.
Why must you know both how many protons and how many neutrons an element has in order to fully identify it?
The number of protons determine what element it is, the number of neutrons determine what isotope it is.
What does the atomic number reference?
The atomic number of an element is given based on the number of protons in the nucleus of all the atoms of that particular element. This applies regardless of the number of neutrons or electrons in any atom of that element. Atoms are initially classified according to the number of protons in the nucleus of an atom, and this will identify which element the atom is. We know that the number of neutrons a given atom of any element can vary, and these will be classified as isotopes of that element. We also know that the number of electrons in any atom will vary, too. Atoms with a neutral charge will have the same number of electrons as protons, but the number of electrons can vary for a number of reasons. The number of protons, however will allow an investigator to identify an atom as being a particular element, and the atom will be further classified from there according to the number of neutrons and/or electrons it has.
How do you find the number of protons or electrons in a neutral atom of an element?
in a neutral atom the no.of electrons and protons are the same. so what you have to only know is the atomic no.of that element
How many protons and electric charges are in gold?
Since gold (AU) is the 79th element on the periodic table, it will always have 79 protons and electrons. There are 36 possible isotopes of gold so the electrons can fluctuate. If you happen to know the isotopic number, you can easily determine the number of electrons in your sample because these numbers are the same.
How do you know how many electrons?
It's the same as the number of protons, which is the atomic number. It's the top number of the element box
