Atoms consist of electrons surrounding a nucleus that contains protons and neutrons. Neutrons argon neutral, but protons and electrons argon electrically charged: protons halt a relational charge of +1 and electrons fool a relative charge of -1.
Atoms and segments
All substances are do of tiny particles called shares. An element is a substance that is made of one sort of atom.
atomic structure
An atom has a small central nucleus made up of smaller sub-atomic particles called protons and neutrons. The nucleus is surrounded by level off smaller sub-atomic particles called electrons.
Protons and electrons have an electrical charge. Both have the alike size of electrical charge, but the proton is positive and the electron negative. Neutrons are neutral.
A summary of the electrical charges in sub-atomic particles
The rate of electrons in an atom is equal to the modus operandi of protons in its nucleus. This means atoms have no overall electrical charge.
Full chemical symbols
The wide-eyed chemical symbol for an element shows its mass number at the top, and its atomic number at the bottom.
This symbol tells you that the chlorine atom has 17 protons. It will also have 17 electrons, because the number of protons and electrons in an atom is the same.
The symbol also tells you that the total number of protons and neutrons in the chlorine atom is 35. Note that you can be given out the number of neutrons from the mass number and atomic number. In this example, it is 35 17 = 18 neutrons.
Writing an electronic structure
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Reactions and compounds
New substances are formed by chemical reactions. When elements react in concert to form compounds their atoms join to otherwise atoms using chemical bonds. For example, iron and sulphur react to make upher to form a compound called iron sulphide.
Compounds usually have different properties from the elements they contain.
Covalent bonds
Compounds formed from non-metals consist of molecules. The...If you want to get a full essay, order it on our website: Ordercustompaper.com
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