Question

1. complete the charts

group numbers element type group description
metal
non - metal
metalloid
group number group name group description
alkali metals
has 1 valence electron

Explanation:

Step1: Recall metal - group relation

Groups 1 - 2, 3 - 12 (transition metals), 13 - 16 have some metals. But common metal - rich groups are 1 (alkali metals), 2 (alkaline earth metals), 3 - 12. For simplicity, we can say groups 1 - 2 are metals.
Group Numbers: 1, 2; Group Description: Reactive metals.

Step2: Recall non - metal - group relation

Group 17 (halogens) and 18 (noble gases) are non - metals. Also, hydrogen in group 1 is a non - metal. Group 14 has carbon as a non - metal. Group 15 has nitrogen and phosphorus as non - metals. Group 16 has oxygen as a non - metal. A common non - metal group is 17.
Group Numbers: 17; Group Description: Very reactive non - metals.

Step3: Recall metalloid - group relation

Metalloids are found in groups 13 - 17 along the staircase on the periodic table. Group 14 has silicon and germanium as metalloids, group 15 has arsenic and antimony as metalloids, group 16 has tellurium as a metalloid. A well - known metalloid group is 14.
Group Numbers: 14; Group Description: Elements with properties between metals and non - metals.

Step4: Recall alkali metals group number

Alkali metals are in group 1.
Group Number: 1; Group Description: Highly reactive metals with 1 valence electron.

Answer:

Group Numbers	Element Type	Group Description
17	Non - metal	Very reactive non - metals
14	Metalloid	Elements with properties between metals and non - metals
1	Alkali Metals	Highly reactive metals with 1 valence electron