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In which of these are the atoms held together by an ionic bond?
Covalent bond forms between....
Nonmetal and a Metal
Metal and a Nonmetal
Ionic bonds are usually formed between two nonmetals.
Ionic Bonding involves...
The transfer of protons
The transfer of nuetrons
The transfer of electrons
Which type of bond has an unequal sharing of electrons?
Non Polar Covalent
Which of these covalent bonds would be the strongest?
C − O
C ≡ O
C = O
they have the same strength
Which of these covalent bonds would be strongest?
S − F
S − Cl
S − Br
S − I
When bonds are broken, energy is....
absorbed; Breaking bonds is endothermic.
released; Breaking bonds is exothermic.
Which of the following is NOT a characteristic typical of ionic compounds?
High melting point
Conducts electricity when dissolved in water
Hard, crystalline solids
Low boiling points
Which type of material usually involves atoms sharing a "sea of electrons"
An unknown chemical is a white powder in appearance, has a low melting point, dissolves in water, but doesn't conduct electricity. What type of bonds are involved?
A mystery substance is a blue crystalline solid, dissolves in water and conducts electricity when molten (melted).
Which of these occurs in an ionic bond?
two atoms share two electrons
like-charged ions attract
oppositely charged ions attract
two atoms share more than two electrons
Why do atoms bond?
to increase their atomic numbers
to become more polar
to attain a noble-gas electron configuration
to become more paramagnetic