C4 -Elements and Isotopes & History of the Periodic Table

Question 1

What do all group 1 Metals have?

Answer 1

All group 1 metals have 1 outer shell electron

Question 2

What does the group number represent?

Answer 2

The group number represents the number of outer shell electrons.

Question 3

What does the period represent?

Answer 3

The period number represents the number of shells.

Question 4

What are isotopes?

Answer 4

Isotopes are different forms of the same element, which have the same number of protons, but a different number of neutrons.
- Isotopes have the same atomic number, but different mass numbers, if they had different atomic numbers, they would be different elements all together.

Question 5

What are two very popular examples of isotopes?

Answer 5

Carbon 12 and carbon 14.