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Study Quiz 2
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1
When a hydrogen atom gains an electron
A)it ends up with two electrons in its filled outer energy level and is called a hydride ion
B)it becomes a proton
C)it becomes positively charged and is called a hydride ion
D)it ends up with eight electrons in its valence shell
2
Which of the following elements will react with magnesium in a one-to-one ratio to form an ionic compound?
A)Bromine
B)Calcium
C)Oxygen
D)Fluorine
3
Which of the following statements is true?
A)Ionic compounds are made up of individual units called molecules.
B)Ionic bonds are attractive forces among many positive and negative ions.
C)Ionic bonds tend to occur between different nonmetals elements.
D)Ionic bonds involve the sharing of electrons.
4
Covalent bonds
A)make up crystal lattices and involve electrostatic attractions between the nuclei of two metal atoms and a pair of electrons.
B)make up compounds that have high melting points and involve attractions between two atoms and a pair of electrons.
C)make up compounds with low melting points and involve attractions between two metal atoms and a pair of shared bonding electrons.
D)make up compounds with low melting points and involve attractions between two nonmetal atoms.
5
What type of bond is formed between sodium and bromine when they combine to form sodium bromide?
A)Ionic
B)Covalent
C)Metallic
D)Polar covalent
6
Metals tend to
A)gain electrons and form positive ions
B)lose electrons and form positive ions
C)gain electrons and form negative ions
D)lose electrons and form negative ions
7
Metallic bonds involve
A)electrostatic attractive forces between negatively charged metal ions and a "sea" of protons
B)electrostatic attractive forces between negatively charged metal ions and a "sea" of electrons
C)electrostatic attractive forces between positively charged metal ions and a "sea" of electrons
D)electrostatic attractive forces between the positive nuclei of adjacent atoms and a pair of shared electrons
8
What type of bond is formed between two carbon atoms?
A)Ionic
B)Metallic
C)Covalent
D)Polar covalent





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