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A magnesium atom that loses two electrons becomes a
particle arrangement
mass number
positive ion with a smaller radius
good electrical conductivity and electro-negativities less than 1.7
a neutron
chlorine
Group 18
20
What is the number of electrons in an atom that has 20 protons and 17 neutrons?
particle arrangement
mass number
positive ion with a smaller radius
good electrical conductivity and electro-negativities less than 1.7
a neutron
chlorine
Group 18
20
Which properties are characteristic of Group 2 elements at STP?
particle arrangement
mass number
positive ion with a smaller radius
good electrical conductivity and electro-negativities less than 1.7
a neutron
chlorine
Group 18
20
Elements that have atoms with stable valence electron configurations in the ground state are found in
particle arrangement
mass number
positive ion with a smaller radius
good electrical conductivity and electro-negativities less than 1.7
a neutron
chlorine
Group 18
20
An atom of which element has the strongest attraction for the electrons in a bond?
particle arrangement
mass number
positive ion with a smaller radius
good electrical conductivity and electro-negativities less than 1.7
a neutron
chlorine
Group 18
20
When a sample of CO2(s) becomes CO2(g), there is a change in
particle arrangement
mass number
positive ion with a smaller radius
good electrical conductivity and electro-negativities less than 1.7
a neutron
chlorine
Group 18
20
The mass of a proton is approximately equal to the mass of
particle arrangement
mass number
positive ion with a smaller radius
good electrical conductivity and electro-negativities less than 1.7
a neutron
chlorine
Group 18
20
Compared to an atom of C-12, an atom of C-14 has a greater
particle arrangement
mass number
positive ion with a smaller radius
good electrical conductivity and electro-negativities less than 1.7
a neutron
chlorine
Group 18
20
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