It’s +21 (c) if i answered late my apologies
Group 1A(1), the alkali metals, includes lithium, sodium, and potassium. Group 7A(17) the halogens, includes chlorine, bromine, and iodine. hope this helps:)
ANSWER IS CONDUCTION. HOPE THIS HELPED!
Answer:1 chemical reactions, 2 properties,3 substances, 4light, 5 color, 6 precipitate, 7 gas, 8 temperature
Explanation: I think this is it I did this a week ago and that’s what I remember
