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ECS Physical Science Ch4 Sec 2 Atom Structure
Test Description: This test is about atomic structure.
Instructions: Answer all questions to get your test result.
1) A subatomic particle that has a positive charge and that is located in the nucleus of an atom.
A
Electron
B
Element
C
Neutron
D
Porton
2) A subatomic particle that has no charge and that is located in the nucleus of an atom
A
Electron
B
Neutron
C
Proton
D
Element
3) Subatomic particle that has a negative charge and moves around the outside of the nucleus
A
Electron
B
Proton
C
Neutron
D
Element
4) The number of protons in the nucleus of an atom.
A
Mass Number
B
Atomic Number
C
Mole
D
Unified Atomic Mass Unit
5) The sum of the numbers of protons and neutrons in the nucleus of an atom
A
Atomic Number
B
Mass Number
C
Mole
D
Isotope
6) An atom that has the same number of protons as other atoms of the same element do but that has a different number of neutrons
A
Molecule
B
Electron
C
Atom
D
Isotope
7) Is equal to one-twelfth of the mass of a carbon-12 atom
A
Atomic number
B
Mass number
C
Unified atomic mass unit
D
Moles
8) The SI base unit used to measure the amount of a sbustance whose number of particles is the same as the number of atoms of carbon in exactly 12 g of carbon-12
A
Mass number
B
Mole
C
Unified atomic mass unit
D
Atomic number
9) An atom's central region, which made up of protons and neutrons
A
Compound
B
Element
C
Electron
D
Nucleus
10) Unable to be cut or divided
A
Atom
B
Element
C
proton
D
Electron
*select an answer for all questions
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