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Atoms

Test Description: Atom structure

Instructions: Answer all questions to get your test result.

1) Subatomic particles include

Aall of the answers listed Bprotons Cneutrons Delectrons

2) Uncharged neutral particles found in the nucleus are called

Aprotons Bneutrons Celectrons Dnone of the listed answers

3) The center of an atom is called

Aprotons Bnuetrons Celectrons Dnucleus

4) Which of the following statements is false?

AThe mass of an electron is equal to the mass of a proton BThe mass of 1 neutron is +1amu CThe mass of 1 proton is +1 amu DThe mass of 1 electron is 0 amu

5) What type of particle has a negative charge?

Anucleus Bneutron Celectron Dproton

6) The nucleus of most atoms consist of

Aprotons and electrons Bonly neutrons Conly protons Dprotons and neutrons

7) What subatomic particle in the nucleus of an atom has a positive (+) charge?

Aneutron Belectron Cproton Datom

8) Accrding to the modern atomic theory, where are electrons most likely found?

Aisotopes Bprotons and neutrons Cin the nucleus Din electron clouds

9) In order for most forms of atoms to be stable (neutral) ...

Athere must be more protons than electrons Bthere must be more electrons than protons Cthere must be an equal number of protons and electrons

10) The following is NOT a characteristic of an electron:

AFor every electron in an atom there is an equal number of protons in the atom. BAn electron has more mass than a proton. CAn electron has a negative (-) charge. DElectrons can be found in pathways called Electron Clouds.

*select an answer for all questions

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