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Home | around Atoms | The periodic Table
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All elements are made of atoms.

You are watching: What makes one atom different from another

There are much more than a hundred various atoms, yet each facet brickandmortarphilly.comntains only one type of atom.
Atoms space what make one element different native another.
So what provides one atom different from another?
The Greeks believed atoms can not be split into something smaller however they to be wrong! Every atom have the right to be divided into 3 different brickandmortarphilly.comntents - protons, neutrons and also electrons.
The nucleus, or center of one atom, is do of protons, (which have actually a positive electric charge) and neutrons, which space neutral (in various other words, they have no charge).
Electrons, which have actually a an unfavorable charge, move about the center of the atom.
Normally, the number of electrons is same to the number of protons, which renders atoms electrically neutral.
The variety of protons in one atom is the defining feature of one atom. It"s what renders one facet different native another. The variety of protons in one atom is referred to as its atomic number. Oxygen atoms have actually 8 protons. Therefore the atomic variety of oxygen is 8.
All the facets in the universe room arranged acbrickandmortarphilly.comrding to your atomic number in the routine table.
Atomic mass
If you include together the variety of protons (or atom number) and also the variety of neutrons in the nucleus of one atom, you can calculate the fixed of the atom. Helium (He), atomic number two, has actually two protons and two neutrons. So the fixed number because that Helium is 4.

See more: When A Corporation Accepts Legal Responsibility For A Contract, It Is Called Novation.

Isotopes
Atoms through the same variety of protons yet different number of neutrons are referred to as isotopes. Uranium-238 and uranium -235 room two various isotopes that uranium. Uranium- 238 has actually a mass variety of 238. Uranium-235 has actually a mass number of 235. So uranium-238 has an ext neutrons 보다 uranium-235. Yet they space still both atom of uranium due to the fact that they have the same number of protons.
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