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Question 1

How do you calculate the number of neutrons in an element?

Answer 1

-> Mass number (The bigger number) - Atomic number (The smaller number)

Question 2

What is a group?

Answer 2

-> Groups are the vertical columns on the periodic table.

Question 3

What is a period?

Answer 3

-> Periods are the horizontal rows on the periodic table.

Question 4

What does the bigger number mean when there is a formula of a compound?

Answer 4

-> The bigger number shows the number of molecules.

Question 5

What is a subscript number?

What does it show?

Answer 5

(1) A subscript number is the small number just below an element.
(2) A subscript number tells you how many elements are found in whatever element came immediately before the number.