Atom is the basic unit of matter that consists of a (1)_______ surrounded by electrons. particles which make up an atom are also known as (2) _________.
The protons are found in the (3) _________ of atom. The
(4) _________moves around the nucleus of an atom and contains a negative charge.
In determining the number of protons it is also equal to the
(5) ______ while the sum of the number of protons and neutrons in the atom referred as (6) ________ . Also the letter represents the (7) ______
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Answers & Comments
Answer:
1. Dense central nucleus
2. Subatomic particles
3. Nucleus
4. Electrons
5. Atomic Number
6. Atomic Mass or Mass Number
7. Symbol
Explanation:
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