ECS Physical Science Ch4 Sec 2 Atom Structure Question Preview (ID: 27414)


This Test Is About Atomic Structure. TEACHERS: click here for quick copy question ID numbers.

A subatomic particle that has a positive charge and that is located in the nucleus of an atom.
a) Porton
b) Neutron
c) Electron
d) Element

A subatomic particle that has no charge and that is located in the nucleus of an atom
a) Proton
b) Neutron
c) Electron
d) Element

Subatomic particle that has a negative charge and moves around the outside of the nucleus
a) Proton
b) Neutron
c) Electron
d) Element

The number of protons in the nucleus of an atom.
a) Mole
b) Unified Atomic Mass Unit
c) Atomic Number
d) Mass Number

The sum of the numbers of protons and neutrons in the nucleus of an atom
a) Atomic Number
b) Mass Number
c) Isotope
d) Mole

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) Electron
b) Molecule
c) Isotope
d) Atom

Is equal to one-twelfth of the mass of a carbon-12 atom
a) Unified atomic mass unit
b) Mass number
c) Atomic number
d) Moles

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) Unified atomic mass unit
b) Atomic number
c) Mass number
d) Mole

An atom's central region, which made up of protons and neutrons
a) Element
b) Compound
c) Electron
d) Nucleus

Unable to be cut or divided
a) Element
b) Electron
c) Atom
d) proton

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