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Which type of matter can not be broken down into simpler substances by a chemical change?
an element
20
chlorine
Group 18
a neutron
mass number
particle arrangement
positive ion with a smaller radius
Compared to an atom of C-12, an atom of C-14 has a greater
an element
20
chlorine
Group 18
a neutron
mass number
particle arrangement
positive ion with a smaller radius
A magnesium atom that loses two electrons becomes a
an element
20
chlorine
Group 18
a neutron
mass number
particle arrangement
positive ion with a smaller radius
Elements that have atoms with stable valence electron configurations in the ground state are found in
an element
20
chlorine
Group 18
a neutron
mass number
particle arrangement
positive ion with a smaller radius
When a sample of CO2(s) becomes CO2(g), there is a change in
an element
20
chlorine
Group 18
a neutron
mass number
particle arrangement
positive ion with a smaller radius
An atom of which element has the strongest attraction for the electrons in a bond?
an element
20
chlorine
Group 18
a neutron
mass number
particle arrangement
positive ion with a smaller radius
What is the number of electrons in an atom that has 20 protons and 17 neutrons?
an element
20
chlorine
Group 18
a neutron
mass number
particle arrangement
positive ion with a smaller radius
The mass of a proton is approximately equal to the mass of
an element
20
chlorine
Group 18
a neutron
mass number
particle arrangement
positive ion with a smaller radius
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