Volume (mL)
300
250
200
150
100
50
Pressure
(kPa)
20
24
30
40
60
Pressure (kPa)
60
40
120
20
0

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123