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KEANMAMPLATA0IN
Answered

puzzle

1. Are composed of three types of
particles, namely,protons,electrons and
neutrons.
3. Most of the mass of the atom is
contained in its
4. He propose another model for the
atom, the nuclear model.
5. It is the number of protons in the
nucleus of an atom,
7. Carries a negatively charged.​

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HCKTMAKBAIN

Answer:

atom

Over 99.9 percent of an atom's mass resides in the nucleus. The protons and neutrons in the center of the atom are about 2,000 times heavier than the electrons orbiting around it.

Rutherford

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus

electron

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