Nature Of Matter: Question Preview (ID: 15929)

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Of the three subatomic particles, _____ are most involved in forming chemical bonds.
a) protons
b) neutrons
c) electrons
d) isotopes

A covalent bond is formed as the result of ____.
a) transferring electrons
b) transferring protons
c) sharing electrons
d) sharing protons

If an atom contains 3 protons, 4 neutrons, and 3 electrons, its mass number is ____.
a) 3
b) 7
c) 6
d) 10

If an atom contains 11 protons and 12 neutrons, its atomic number is ____.
a) 1
b) 45
c) 23
d) 11

Scientists show the composition of compounds by a kind of shorthand known as a chemical formula.
a) true
b) false

What type of ion forms when an atom loses electrons?
a) positive
b) negative
c) neutral
d) radioactive

Isotopes are atoms of the same element with the same number of protons and a different number of ___.
a) protons
b) neutrons
c) electrons
d) ions

What particles are found in a cloud surrounding the nucleus of an atom?
a) protons
b) neutrons
c) electrons
d) isotopes

The three particles that make up atoms are _____.
a) protons, neutrons, and isotopes.
b) positives, negatives, and neutrals
c) neutrons, isotopes and electrons
d) protons, neutrons and electrons

Which of the following is a substance formed by the chemical joining of two or more elements in definite amounts?
a) compound
b) isotope
c) nucleus
d) enzyme

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