Which sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory?
O higher temperature more kinetic energy → more space between particles – higher volume
higher temperature → less kinetic energy – less space between particles – higher volume
higher temperature → more kinetic energy less space between particles - lower volume
higher temperature → less kinetic energy → more space between particles lower volume

Explanation:

The kinetic energy of a gas molecule is given by :

It means, whenever the temperature of gas is increased, its kinetic energy will increase and the space between the particles gets increase. So, the space in which particles can collide with each other increases i.e. its volume gets high.

Hence, the correct option is (A). "higher temperature more kinetic energy → more space between particles – higher volume".

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

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.