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Fluorine has an atomic number of 9 and an atomic mass of 18.998. How many protons does an atom of fluorine have?
an atom
by the atomic number
a compound
Atomic Mass
protons and neutrons
12
9
periods
The periodic table is arranged —
an atom
by the atomic number
a compound
Atomic Mass
protons and neutrons
12
9
periods
The basic building block of all matter is —
an atom
by the atomic number
a compound
Atomic Mass
protons and neutrons
12
9
periods
Horizontal rows in the periodic table are called —
an atom
by the atomic number
a compound
Atomic Mass
protons and neutrons
12
9
periods
Two or more elements chemically combine together to form —
an atom
by the atomic number
a compound
Atomic Mass
protons and neutrons
12
9
periods
Sodium has an atomic number of 11 and a mass number of 23. How many neutrons would be in an atom of Sodium?
an atom
by the atomic number
a compound
Atomic Mass
protons and neutrons
12
9
periods
The ________________ of an element is the average mass of an element's naturally occurring atoms.
an atom
by the atomic number
a compound
Atomic Mass
protons and neutrons
12
9
periods
What does the nucleus of an atom contain?
an atom
by the atomic number
a compound
Atomic Mass
protons and neutrons
12
9
periods
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