WorksheetsScience Ch. 11
Total questions: 10
Worksheet time: 9mins
A ________ _____ is a force that holds two or more atoms together.
(a)
Valence Electrons...
are the outermost electrons of an atom that participates in chemical bonding.
are the innermost electrons of an atom that participates in chemical bonding.
have the most energy of all electrons in an atom.
have the least energy of all electrons in an atom.
How many valence electrons are in Hydrogen (H)
(a)
A covalent bond is a chemical bond formed when two atoms share one or more pairs of valence electrons.
True
False
What is a molecule that has a partial positive
end and a partial negative end because of unequal sharing of electrons
(a)
What are examples of polar molecules?
Water
Sugar
None
What is the chemical form or carbon dioxide ?
CO2
CO2
CO2
C
An ion is an atom that is electrically neutral because it has lost or gained valence electrons.
True
False
An atom is unstable when it has...
7 valence electrons
6 valence electrons
8 valence electrons
1 valence electrons
Draw an electron dot diagram of Helium(He)
