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An atom has 24 protons, 28 neutrons and 24 electrons. What's the charge of the nucleus?
mass number minus protons
atomic number
7
positive 24
10
negative charge and little to no mass
the react in similar ways
positive
Identity of the element determined by
mass number minus protons
atomic number
7
positive 24
10
negative charge and little to no mass
the react in similar ways
positive
Which of the following best describes an electron?
mass number minus protons
atomic number
7
positive 24
10
negative charge and little to no mass
the react in similar ways
positive
An atom has 10 protons and atomic mass of 20. How many neutrons?
mass number minus protons
atomic number
7
positive 24
10
negative charge and little to no mass
the react in similar ways
positive
Flourine, Chlorine, Bromine and Iodine are all found in the same group. These elements are group together because
mass number minus protons
atomic number
7
positive 24
10
negative charge and little to no mass
the react in similar ways
positive
atomic mass is determined by
mass number minus protons
atomic number
7
positive 24
10
negative charge and little to no mass
the react in similar ways
positive
Charge of the nucleus
mass number minus protons
atomic number
7
positive 24
10
negative charge and little to no mass
the react in similar ways
positive
Flourine is in group 17 and has an atomic number of 9. How may valence electrons does it have?
mass number minus protons
atomic number
7
positive 24
10
negative charge and little to no mass
the react in similar ways
positive
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