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Atomic Structure 1

Test Description: Review of Atomic Structure

Instructions: Answer all questions to get your test result.

1) The atomic number is the number of _____________ in the nucleus of an atom.

Aions Bneutrons Cprotons Delectrons

2) Where can electrons be found orbiting the nucleus?

Ain clusters of threes around the nucleus Bvery close to the nucleus Cin random orbits that may cut through the nucleus Din orbit shells at great distances from the nucleus

3) Atoms are the building blocks of _____________.

Aelectrons Bions Csubatomic particles Delements

4) Electricity is a form of energy transfer in which atoms lose and regain ___________.

Aelectrons Bneutrons Cprotons Dleptons

5) The distance between the nucleus and the electrons of an atom _____________.

Ais so great that atoms are mostly empty space. Bmakes chemical reactions take a very long time to complete. Cis unknown to scientists at this time. Dis so small that the electrons often hit the neutrons.

6) Protons, neutrons, and electrons are the subatomic particles found in an

Aelement Batom Cisotope Dmineral

7) The nucleus contains both neutrons and positively charged particles called

Aneutrons Bprotons Celectrons Dions

8) What particles are found in the nucleus of an atom?

Aneutrons and electrons Bprotons and neutrons Cprotons and electrons Donly protons

9) What part of an atom has the smallest mass?

Aneutrons Bnucleus Cprotons Delectrons

10) The mass number of an atom is the number of protons plus the number of ______ .

Aneutrons Belectrons Cpositrons Dprotons

*select an answer for all questions

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