PhySci Ch6 Question Preview (ID: 34208)


PhySci Ch6. TEACHERS: click here for quick copy question ID numbers.

regions of most probable location of electrons
a) orbitals
b) proton
c) radioactivity
d) neutron

the center of an atom, which contains protons and neutrons
a) nucleus
b) electron
c) fission
d) isotopes

a neutral particle in the nucleus of an atom, with approximately the same mass as a proton
a) neutron
b) proton
c) atomic mass unit
d) energy level

the sum of the protons and neutrons in the nucleus of an atom; also known as atomic mass
a) mass number
b) atomic mass
c) fusion
d) electron

different forms of the same element that have different numbers of neutrons
a) isotopes
b) atomic mass
c) nucleus
d) orbitals

the joining together of smaller nuclei into a larger one
a) fusion
b) fission
c) proton
d) electron

the splitting of a nucleus
a) fission
b) fusion
c) orbitals
d) protons

a region in an atom that contains electrons of a certain energy
a) energy level
b) fission
c) fusion
d) isotopes

a negatively charged particle with an extremely small mass
a) electron
b) mass number
c) neutron
d) orbitals

the number of protons in the nucleus of an atom
a) atomic number
b) electron
c) atomic mass unit
d) proton

a unit used to measure the mass of an atom; 1/12 the mass of a carbon-12 atom
a) atomic mass unit
b) atomic mass
c) electron
d) atomic number

the total of the masses of the particles in an atom
a) atomic mass
b) electron
c) fusion
d) nucleus

a positively charged particle in the nucleus of an atom; 1836 times heavier than an electron
a) proton
b) energy level
c) electron
d) atomic number

the emission of rays and particles from an unstable nucleus
a) radioactivity
b) fission
c) fusion
d) atomic number

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