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Which Lewis electron-dot diagram represents an atom of nitrogen in the ground state?
ethanoic acid
10%
CaH2
higher first ionization energies and higher electronegativity values
2
1
18
0.935 mol
A potassium atom has a mass number of 37. What is the number of neutrons in this atom?
ethanoic acid
10%
CaH2
higher first ionization energies and higher electronegativity values
2
1
18
0.935 mol
Which particle diagram represents a sample of xenon at STP?
ethanoic acid
10%
CaH2
higher first ionization energies and higher electronegativity values
2
1
18
0.935 mol
Compared to the metals in Period 2, the nonmetals in Period 2 have
ethanoic acid
10%
CaH2
higher first ionization energies and higher electronegativity values
2
1
18
0.935 mol
Which formula represents calcium hydride?
ethanoic acid
10%
CaH2
higher first ionization energies and higher electronegativity values
2
1
18
0.935 mol
A potassium atom has a mass number of 37. What is the number of neutrons in this atom?
ethanoic acid
10%
CaH2
higher first ionization energies and higher electronegativity values
2
1
18
0.935 mol
Which compound has the strongest intermolecular forces at 60 kPa?
ethanoic acid
10%
CaH2
higher first ionization energies and higher electronegativity values
2
1
18
0.935 mol
What is the number of moles in a 78.8-gram sample of MgCO3 (gram-formula mass = 84.3 g/mol)?
ethanoic acid
10%
CaH2
higher first ionization energies and higher electronegativity values
2
1
18
0.935 mol
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