Question
Elements in Group IV of the Periodic Table are shown.
carbon
silicon
germanium
tin
lead
What does not occur in Group IV as it is descended?
- The proton number of the elements increases.
- The elements become more metallic.
- The elements have more electrons in their outer shell.
- The elements have more electron shells.
Answer/Explanation
Ans:
C
Question
The table gives some properties of Group IV elements.
Answer/Explanation
Ans: A
Question
Which row describes the reactions of magnesium hydroxide and magnesium oxide?
Answer/Explanation
Ans: B
Question
Element R forms a covalent compound R2Si with silicon.
Which row describes R?
Answer/Explanation
Ans: D