Answer:
I belive it's the black chair because they were asking which chair experienced the most force in the begining and the black chair had the most force given.
An x would represent the gained electrons
A . Would represent the valence electrons
You would just draw [ ] around the diagram
And the charge should be placed outside the brackets
They are odourless, colourless monatomic gases with full outer shells
The group of elements that have some properties of metals and some properties of nonmetals are called metalloids.
Use higher concentration of acid to produce 2 moles of hydrogen to form water
