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WorksheetsChemical Bonding 18a
Total questions: 12
Worksheet time: 7mins
Covalent compounds
Share electrons
gain or lose electrons
contain a sea of electrons
conduct electricity
Which elements have low EN and tend to lose electrons?
metals
nonmetals
noble gases
halogens
How many electrons are needed in the outer energy levels of most atoms to be stable?
2
4
6
8
A anion will be a ____ ion.
negative
positive
neutral
unstable
Electronegativity is...
how good an atom is at attracting electrons
the ability of an atom to lose electrons
the energy required to remove an electron from a specific atom
measure of negative charge of an anion
The element that probably has the greatest electronegativity is...
Au
F
Ca
K
Which of these is the least electronegative element?
oxygen
potassium
chlorine
nitrogen
When an atom loses an electron, it becomes a...
cation
anion
neutral ion
neutral atom
Why do elements form bonds?
To become more stable
To become more reactive
To become neutrally charged
To shed excess electrons
How are ionic bonds formed?
Nearly equal electronegativities
Sharing of electrons
losing and gaining electrons
Cations surrounded by free electrons
Two atoms of the same element will form...
an ionic bond.
a nonpolar covalent bond.
a polar covalent bond.
a double bond
