11. | Which group do inert elements belong to? |
A. zero group | |
B. VIIA | |
C. VIII | |
D. IA |
12. | In which group of the periodic table are the alkali metals placed? |
A. IA | |
B. IB | |
C. IIb | |
D. IIIB |
13. | Which group of elements are called coinage metals? |
A. IA | |
B. IB | |
C. IIA | |
D. IIIA |
14. | By what name are the elements placed in the zero group known? |
A. halogen | |
B. alkali metals | |
C. alkaline earth metals | |
D. inactive ingredients |
15. | Two elements in the periodic table are named after France, one of them is francium, then which is the other element? |
A. fluorine | |
B. Chromium | |
C. fermium | |
D. gallium |
16. | who discovered polonium |
A. auston | |
B. my curie | |
C. Joliet | |
D. etienne curie |
17. | is the heaviest metal |
A. Silver | |
B. Sleep | |
C. Mercury | |
D. osmium |
18. | is the lightest metal |
A. magnesium | |
B. aluminum | |
C. platinum | |
D. lithium |
19. | which is the lightest element |
A. hydrogen | |
B. helium | |
C. lithium | |
D. sodium |
20. | Which element is most negative |
A. oxygen | |
B. Flurrin | |
C. sodium | |
D. chlorine |