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Atoms
Test Description: Atom structure
Instructions: Answer all questions to get your test result.
1) Subatomic particles include
A
electrons
B
neutrons
C
protons
D
all of the answers listed
2) Uncharged neutral particles found in the nucleus are called
A
protons
B
none of the listed answers
C
neutrons
D
electrons
3) The center of an atom is called
A
nuetrons
B
nucleus
C
electrons
D
protons
4) Which of the following statements is false?
A
The mass of an electron is equal to the mass of a proton
B
The mass of 1 proton is +1 amu
C
The mass of 1 neutron is +1amu
D
The mass of 1 electron is 0 amu
5) What type of particle has a negative charge?
A
proton
B
neutron
C
electron
D
nucleus
6) The nucleus of most atoms consist of
A
only neutrons
B
protons and neutrons
C
protons and electrons
D
only protons
7) What subatomic particle in the nucleus of an atom has a positive (+) charge?
A
proton
B
atom
C
electron
D
neutron
8) Accrding to the modern atomic theory, where are electrons most likely found?
A
in electron clouds
B
in the nucleus
C
isotopes
D
protons and neutrons
9) In order for most forms of atoms to be stable (neutral) ...
A
there must be an equal number of protons and electrons
B
there must be more electrons than protons
C
there must be more protons than electrons
10) The following is NOT a characteristic of an electron:
A
An electron has a negative (-) charge.
B
Electrons can be found in pathways called Electron Clouds.
C
For every electron in an atom there is an equal number of protons in the atom.
D
An electron has more mass than a proton.
*select an answer for all questions
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