Explanation:
The periodic table lists elements based on their atomic numbers. It is made up of 7 periods and about 18 groups.
Atomic number is number of protons in an atom. It is on the basis of this that the period law is expressed.
The law states that "the properties of elements are a periodic function of their atomic number".
An atom on the periodic table is designated as:
⁸ₙK
K is the symbol of the atom
n is the atomic number
a is the mass number
For every atom on the periodic table, they are electrically neutral. This suggests that they have equal number of protons and electrons.
Since n is the atomic number
The atomic number is the same as the number of protons in an atom. This is also the number of neutrons.
To find the number of neutrons:
Number of neutrons = mass number - atomic number
learn more:
Periodic table brainly.com/question/8543126
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