11) Identify the description of an atom.

A) neutrons and electrons in nucleus; protons in orbitals

B) neutrons in nucleus; protons and electrons in orbitals

C) protons and neutrons in nucleus; electrons in orbitals

D) protons and electrons in nucleus; neutrons in orbitals

E) electrons in nucleus; protons and neutrons in orbitals

25) Which of the following is equal to exactly Avogadro's number of atoms?

A) 8.00 grams of oxygen

B) 35.38 grams of zinc

C) 12.01 grams of carbon

D) 11.99 grams of sodium

E) 34.00 grams of selenium

31) Identify the compound with ionic bonds.

A) Ne

B) CO

C) N2

D) H2O

E) KCl

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Elin HesselLv2

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