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Which part of the atom determines how it will react with other elements?
They are highly reactive.
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron.
Mg
Protons
Electrons
Valance electrons
9 protons, 10 neutrons
It has mass but no charge.
Which of the following could describe an atom with an atomic number of 9?
They are highly reactive.
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron.
Mg
Protons
Electrons
Valance electrons
9 protons, 10 neutrons
It has mass but no charge.
Which of the following atoms would have a valence of 2?
They are highly reactive.
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron.
Mg
Protons
Electrons
Valance electrons
9 protons, 10 neutrons
It has mass but no charge.
Which part of the atom is MOST important in determining an element's identity?
They are highly reactive.
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron.
Mg
Protons
Electrons
Valance electrons
9 protons, 10 neutrons
It has mass but no charge.
Which statement is true of the properties of Lithium, Sodium, and Potassium?
They are highly reactive.
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron.
Mg
Protons
Electrons
Valance electrons
9 protons, 10 neutrons
It has mass but no charge.
Which of the following best describes one of the subatomic particles that could be found within the nucleus?
They are highly reactive.
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron.
Mg
Protons
Electrons
Valance electrons
9 protons, 10 neutrons
It has mass but no charge.
Which of the following statements best explains why potassium (K) reacts easily with bromine (Br)?
They are highly reactive.
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron.
Mg
Protons
Electrons
Valance electrons
9 protons, 10 neutrons
It has mass but no charge.
Which of these is NOT found in the nucleus of an atom?
They are highly reactive.
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron.
Mg
Protons
Electrons
Valance electrons
9 protons, 10 neutrons
It has mass but no charge.
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