Science and Measurement
What is Matter
Atoms
Elements
Molecules and Compounds
100
Something that you change in an experiment
What is independent variable?
100
Anything that has mass and takes up space
What is matter
100
Particle with no charge that exists in nucleus of most atoms
What is a neutron?
100
A war to refer to an element; describes the number of protons in the nucleus
What is an atomic number?
100
Most atoms need eight valence electrons to be stable
What is the octet rule?
200
Something you keep the same in an experiment
What is controlled variable (control)?
200
a pure substance which contains only one kind of matter
What is an element
200
Positively charged particle that exists in nucleus of an atom
What is a proton?
200
The reason that an atom's protons don't break its nucleus apart
What is strong nuclear force?
200
A bond between atoms in which electrons are lost or gained
What is an ionic bond?
300
The process that is used to solve problems in science
What is the scientific method?
300
contains two or more kinds of matter that cannot be separated by physical means
What is a compound?
300
Center of atom, contains most of atom's mass
What is nucleus?
300
How electrons are arranged around an atom
What are energy levels?
300
The electrons involved in chemical bonding
What are valance electrons?
400
Gram, Meter, Liter
What are the standard base units?
400
The total number of protons and neutrons in the nucleus of an atom
What is the mass number?
400
Tiny bits of matter that are the building blocks of an atom
What are subatomic particles?
400
The average mass of all of the known isotopes of an element
What is atomic mass?
400
A bond between atoms in which electrons are shared
What is a covalent bond?
500
A system of measuring that uses length units of millimeters, centimeters, meters, and kilometers
What is the metric system?
500
Elements with similar properties, listed in a single column on the periodic table
What is a group of elements?
500
Negatively charged particle that exists in space surrounding an atom's nucleus
What is an electron
500
Equal to 1/12th the mass of a carbon-12 atom
What is atomic mass unit?
500
A molecule composed of two monatomic ions
What is a polyatomic ion?
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