Use the drop-down menus to complete each sentence. is moving the fastest. is standing still. started at the same location.

car a

car c

cars a and b

on egdenuity i just did it

Explanation:

i would say that A is the fastest and B is standing still

Explanation:

P.s so sorry i could not talk to you please forgive meh

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.