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Match it! Select the correct answer from the pull down...Good luck!
The smallest unit of matter in this list is ________.
Cu
F
Pb
9
K
mass, space
an atom
22
A certain atom has 4 protons, 4 electrons, and 5 neutrons. Its atomic mass is ____.
Cu
F
Pb
9
K
mass, space
an atom
22
A certain atom has 18 protons, 18 electrons, and an atomic mass of 39.95. How many neutrons does it have?
Cu
F
Pb
9
K
mass, space
an atom
22
Which of the following is the chemical symbol for lead?
Cu
F
Pb
9
K
mass, space
an atom
22
What element has 19 protons?
Cu
F
Pb
9
K
mass, space
an atom
22
Matter is anything that has _________ and takes up ________.
Cu
F
Pb
9
K
mass, space
an atom
22
What element has 9 protons?
Cu
F
Pb
9
K
mass, space
an atom
22
Which of the following is the chemical symbol for copper?
Cu
F
Pb
9
K
mass, space
an atom
22
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