Weegy: Carbon has 4 valence electrons. Number of valence electrons = main group number.
User:
Elements in the same group have the same __________.
a.
atomic radius.
c.
nuclear charge.
b.
energy level of outer electrons.
d.
number of valence electrons.
Weegy: Carbon has 4 valence electrons. Number of valence electrons = main group number.
User: The relationship between mass and volume is known as:
a.
density
c.
both a and b
b.
weight
d.
neither a or b
Weegy: The relationship between mass and volume is known as density.
User: Which properties in the table are colligative properties?
a.
density and boiling point
c.
boiling point and freezing point
b.
density and freezing point
d.
density only
Weegy: Boiling point and freezing point are colligative properties.
User: Convert 145.0 mm to meters and express the answer to the correct number of significant digits.
Weegy: 145.0 millimeters is equivalent to 0.145 meters.
User: All matter that we encounter in everyday life exists in at least one of three physical forms.
Weegy: All matter that we encounter in everyday life exists in at least one of three physical forms. TRUE.
User: Unstable nuclei will undergo radioactive decay in order to gain stability.
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