Answer:
Radium
Explanation:
It has the highest atomic number so it would have more shells, making it larger than the others.
The answer would be B because you can go and find evidence and facts to conduct an investigation on that.
Answer:
The large relative distances between particles in a gas means that there is considerable empty space between the particles.
The assumption that particles in a gas are relatively far apart explains gas compressibility.
Compressibility is a measure of how much the volume of matter decreases under pressure.
Energy is released by a gas when it is compressed
Explanation:
The kinetic molecular theory establishes that gases are composed of molecules. These molecules of gas are far apart from each other hence there is a considerable empty space between the gas molecules. As a result of these empty spaces between gas molecules, it is possible to compress a gas.
Compressibility is defined as a measure of how much the volume of matter decreases under pressure. When a gas is compressed, work is done on the gas and energy is evolved hence the gas heats up.
a)
b)
Using the atomic mass given in the periodic table:
c)
Using the atomic mass given in the periodic table:
This result is an aproximation.
