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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
Neutron
B
Element
C
Electron
D
Porton
2) A subatomic particle that has no charge and that is located in the nucleus of an atom
A
Electron
B
Element
C
Neutron
D
Proton
3) Subatomic particle that has a negative charge and moves around the outside of the nucleus
A
Electron
B
Element
C
Neutron
D
Proton
4) The number of protons in the nucleus of an atom.
A
Atomic Number
B
Mole
C
Unified Atomic Mass Unit
D
Mass Number
5) The sum of the numbers of protons and neutrons in the nucleus of an atom
A
Isotope
B
Mole
C
Atomic Number
D
Mass Number
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
Atom
B
Isotope
C
Electron
D
Molecule
7) Is equal to one-twelfth of the mass of a carbon-12 atom
A
Atomic number
B
Unified atomic mass unit
C
Moles
D
Mass number
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
Mole
B
Atomic number
C
Mass number
D
Unified atomic mass unit
9) An atom's central region, which made up of protons and neutrons
A
Element
B
Electron
C
Nucleus
D
Compound
10) Unable to be cut or divided
A
Element
B
proton
C
Atom
D
Electron
*select an answer for all questions
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