The nucleus or center _area of the atom contains two kinds of subatomic particles. which two?
a) protons and electrons
b) protons and neutrons
c) electrons and neutrons
i think it's a

The correct answer is Option B.

Explanation:

There are 3 subatomic particles present in an atom. They are: protons, electrons and neutrons.

Any neutral atom has equal number of protons and electrons.

Nucleus contain two sub atomic particles which are neutrons and protons. They are used to determine the mass of an atom.

Hence, the correct answer is Option B.

b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.