Give an example of a cause and effect relationship.

example:
gases expand when heated. an expanded gas occupies more space.

what causes the gas to expand?

what are the effects of the expanded gases?

a cause and effect relationship using acids, bases, and neutralization.

answer: i would say b.

explanation:

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.