Atomic Structure - Isotopes Question Preview (ID: 10724)


Review Of Atomic Structure - Isotopes: High School Chemistry. TEACHERS: click here for quick copy question ID numbers.

Atoms of different isotopes of the same element differ in their total number of
a) electrons
b) neutrons
c) protons
d) valence electrons

The nucleus of an atom of cobalt-58 contains
a) 27 protons and 31 neutrons
b) 27 protons and 32 neutrons
c) 59 protons and 60 neutrons
d) 60 protons and 60 neutrons

Isotopes of an element must have different
a) atomic numbers
b) mass numbers
c) number of protons
d) number of electrons

Atoms of the same element that have different numbers of neutrons are classified as
a) charged atoms
b) charged nuclei
c) isomers
d) isotopes

What is the structure of a krypton-85 atom?
a) 49 electrons, 49 protons, and 85 neutrons
b) 49 electrons, 49 protons, and 49 neutrons
c) 36 electrons, 36 protons, and 85 neutrons
d) 36 electrons, 36 protons, and 49 neutrons

A neutral atom with 6 electrons and 8 neutrons is an isotope of
a) carbon
b) silicon
c) nitrogen
d) oxygen

What is the total number of neutrons in an atom of Pb-207?
a) 82
b) 125
c) 207
d) 289

Which isotope contains the greatest number of neutrons?
a) Chlorine-37
b) Potassium-39
c) Argon-40
d) Calcium-41

The nucleus of which atom contains 48 neutrons?
a) S-32
b) Ti-48
c) Rb-85
d) Cd-112

In which two atoms do both nuclides contain the same number of neutrons?
a) Ne-20 and Ar-40
b) Cu-65 and Zn-65
c) Mg-24 and Mg-26
d) C-14 and O-16

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