Which type of protein stays only on the surface of the plasma membrane? a: peripheral b: transmembrane c: integral d: exterior

Hey there!!!

The correct answer is A. peripheral membrane.

Hope this helps you and have a great day                                                    I wish you the best of luck (:

mention the spill to the teacher clean the area and throw the broken pieces away

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.