1. Periods:
- What are the horizontal rows on the periodic table called?
- Answer: Periods
2. Groups:
- What are the vertical columns on the periodic table known as?
- Answer: Groups
3. Isotopes:
- What term is used for atoms of the same element that have different numbers of neutrons?
- Answer: Isotopes
4. Alkali Metals:
, - What is the name for the elements in Group 1?
- Answer: Alkali Metals
5. Alkaline Earth Metals:
- Which elements are found in Group 2?
- Answer: Alkaline Earth Metals
6. Halogens:
- What is the designation for the elements in Group 17?
- Answer: Halogens
7. Noble Gases:
- What are the elements in Group 18 referred to as?
- Answer: Noble Gases