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Group numbers tell us that how many electrons an atom contain in its outer shell. Eg. Na11 have 1 electron in its outer shell it means Na belongs to group 1. and so on.

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15y ago

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How do you determine the atom the atomic mass of an atom?

Proton + Nuetron = Atomic Mass


What does the atomic number help you find out about the atom?

The Atomic Number immediately tells you the number of Protons and Electrons that are in the atom. Additionally, the At. No allows you to find it quickly on the Periodic Chart where you will learn its Symbol (a key to finding its name) and its Atomic Weight. Knowing the At. Wt. you can determine the number of Neutrons that your atom has. Etc, etc, etc,


Which number associated with an atom is a characteristic property?

Atomic number is a characteristic property of an atom. Each element has its own unique atomic number, which is the number of protons in the nucleus of an atom.


How do you determine the numbers of the three types of particles in each atom?

In an atom, no. of protons = no. of electrons=atomic no. no. of neutrons=atomic mass-atomic no.


What do we do to determine the number of neutrons in a atom?

atomic number


What determine the atomic number of atom?

The number of protons


The number of these will determine it's atomic number?

The atomic number of any atom is determined by the number of protons in the nucleus of the atom.


How do you determine neutrons in an atom of sodium-20?

the atomic mass


Is the atomic number determine by the number protons in an atom?

yes...


How do you determine the atomic number of and atom?

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How you can determine the number of protons electrons and neutrons an atom has from an atom's mass number and its atomic number?

To determine the number of protons, look at the atomic number. The number of electrons is also the atomic number.To find the number of neutrons subtract the atomic number from the Atomic Mass number.


How do scients determine the atomic number of an atom?

the atomic number is determined by the number of protons in a nucleus.