Q: Answer the question

Which sentence about the periodic table of elements is true?
OPTIONS:
- All elements in period 2 are metals.
- All elements in group 18 are metals.
- Metals are found on the left side of the periodic table.
- Metals are found on the right side of the periodic table.

A: Metals are found on the left side of the periodic table.

Q: Answer the question

A flower produces seeds that fall to the ground and grow into new plants that produce more flowers. The seeds begin to grow by the process of
OPTIONS:
- fertilization.
- germination.
- maturation.
- pollination.

A: germination.

Q: Answer the question

On the periodic table, the elements in group 18 (8A) (helium, neon, argon, etc.) are grouped together because
OPTIONS:
- they are lighter than air.
- they have full outer electron shells.
- they have excess electrons to share.
- they easily react with other elements.

A:
they have full outer electron shells.