Question

The bottom number (the bigger number) on each element square on the Periodic Table is called __________.

Question 5 options:

A. Proton

B. Electron

C. Atomic Number

D. Atomic Mass

Answer 1

Answer:

proton

Explanation:

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Answer 2

The bottom number on each element square on the Periodic Table is called C. Atomic number.

Explanation:

All the elements that has ever been discovered by scientists, are organized in an orderly way in the modern periodic table. The modern periodic table arranges all the elements according to atomic number of elements.  

Atomic Number: The number of electrons is equal to number of protons and that is the atomic number of element.  

Mass number: Sum of number of neutrons and number of protons in the nucleus is called the atomic mass of element.

• Elements are arranged in row and columns  in increasing atomic number from left to right.
• Rows are called periods and columns are called groups.
• This atomic number acts as an identity of the elements and it is written in bold in each element square blocks.