The study of Matter and the changes that it undergoes. - Chemistry
Represents the closeness of a measurement to the actual value: - accuracy
The SI (metric) unit for length is the - Meter (m)
The SI (metric) unit for mass is the - Kilogram (kg)
Prefix which means 1000 - kilo
Amount of mass per unit of volume. - density
Measure of total quantity of matter in an object. - mass
Boiling point of water on the Celsius scale. - 100 degrees Celsius
A measurement must always contain a number and a - unit
The density of lead is 11.3 g/mL. What would be the specific gravity of lead? - 11.3 g/mL
The liter or cubic decimeter is the metric unit for - volume
Water has a density of 1.00 g/mL. A substance with a density less than water will __________ in water. -
float
Determine the number of significant figures in 10002 lbs - 5
, Determine the number of significant figures in 0.00205 mL - 3
Determine the number of significant figures in 1.0400 - 5
Find the density of a metal that has a mass of 40.0g and occupies a volume of 12.0 mL. - 40/12=3.33
The smallest part of an element that can exist and still be that element. - atom
Which four elements are classified as a "building block" elements - carbon, hydrogen, oxygen, nitrogen
The nucleus is composed of protons and - neutrons
Protons have a mass of one and a charge of - +1
A horizontal row on the periodic table is called a - period
Carbon-12 and Carbon-14 are isotopes of the same element. They differ in number of - neutrons
The atomic number is equal to the number of - protons
Most non-metals are located on the periodic table on the __________ side. - upper-right
Outer energy level (shell) electrons are called _________ elections. - valence
What is the number of electrons possible for a "p" subshell? - 6
Across a period from left to right in the periodic table, the size of atoms - decreases
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