GEOLOGY

Detailed explanation-1: -As we have discussed above, an atom is made up of protons, neutrons and electrons. The thing that makes one type of atom different from another type of atom is the number of protons in its nucleus.

Detailed explanation-2: -The basic building blocks that make up matter are called atoms.

Detailed explanation-3: -Atoms are made up of even smaller subatomic particles, three types of which are important: the proton, neutron, and electron. The number of positively-charged protons and non-charged (“neutral”) neutrons, gives mass to the atom, and the number of each in the nucleus of the atom determine the element.

Detailed explanation-4: -Matter is everything that occupies space and which has mass. Matter is made up of small particles called atoms. So these atoms are considered as building blocks of matter.

Detailed explanation-5: -Everything in the universe (except energy) is made of matter, and, so, everything in the universe is made of atoms. An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons.