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WorksheetsBONDING between US
Total questions: 18
Worksheet time: 18mins
When elements combine to form compounds ______.
only the outermost electrons of the atoms are involved
all the electrons of the atoms are involved
the protons and electrons are involved
only the protons are involved
Which part of the atom is involved in chemical bonding?
Only the nucleus.
Only the electrons.
Only the protons.
Only the valence electrons.
When an ionic bond is formed, the atom that transfers its valence electron out becomes an ion with _______.
positive charge and more protons
positive charge and no change in the number of protons
negative charge and more proton
negative charge and no change in the number of protons
What mono-atomic ion has 26 protons, 30 neutrons and 24 electrons?
chromium(II)
copper(II)
iron(II)
zinc(II)
If a pure substance is a good conductor of electricity in both its solid and its liquid phases, the bonding is the substance is predominantly _____.
ionic
metallic
polar covalent
non-polar covalent
Which type of bonding involves positive ions immersed in a sea of mobile electrons?
Ionic.
Non-polar covalent.
Polar covalent.
Metallic
The characteristic of metallic bonding that distinguishes it from other types of bonds is the _______.
fixed position of the valence electrons
polar property of substances with metallic bonds
freedom of movement of the valence electrons
directional nature of the bonds formed
A polyatomic ion can be found in which of the following choices?
LiBr
ClO3-
O3
Sr2+
Which kind of bond predominates in compounds formed between Group 1 and Group 17 elements?
Covalent.
Metallic.
Ionic.
Polar-covalent.
The malleability, conductivity, ductility, and luster of metals can be explained by ______.
mobile electrons
immobile electrons
equally shared electrons pairs
unequally shared electron pairs
When metals combine with nonmetals, the chemical bond is usually (a) .
A bond in which atoms share a pair of electrons is (a) .
Name the main type of bonding found in sodium chloride, NaCl.
(a)
Which one is an example of a diatomic molecule?
Mg2+
N2
He
Li2SO4
Two helium atoms do not unite to form a bond because ______.
helium is a gas
the p orbitals are complete
each atom has two electrons in the 1s orbital
the orbitals are half-filled
Chemical bonds may be produced by any of the following processes involving electrons except: _____.
losing.
gaining.
sharing.
splitting.
Element A has an electron configuration of 1s22s1, and element B has an electron configuration of 1s22s22p4. The most probable formula for a compound of these two elements is ____.
AB2
A2B
A4B3
A4B
Metallic atoms become ions by _____.
losing protons
losing electrons
gaining protons
gaining electrons
