4. At high pressures, how does the volume of a real gas compare with the volume of an ideal gas under the same conditions, and why?
It is much greater because real gas particles take up space.
There is no difference because the gas laws are always obeyed.
It is much less because real gas particles are not moving.
It is much less because at high pressures the temperature drops.

answer: lol

explanation:

lol

the temperature of the gas, in k, not celsius.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.