Heat and stuff (tempterature
Elements and properties
Periodic table
Composition and matter
Electric charge
100
closed conduction loop through which an electric current can flow
What is electric current
100
The elements in group 17 have how many electrons in their outer energy level?
What is 7
100
Flammability is a ___ property
What is chemical
100
Anything that takes up mass and takes up space
What is matter
100
Electric current is the flow of ____ through a material
What is electric charges
200
Temperature differences on the earth produce____ currents in the atmosphere?
What is convection.
200
The elements in group 18 are called what gases?
What is noble
200
The properties of a compound are_____ from the properties of the elements that make up the compound
What is different
200
A measurement of the pull of gravity on an object
What is weight
200
Electric current is measured in ____
What is Amperes
300
The temperature of an object is the measure of the average _____ of the particles.
What is kinetic energy.
300
Group 1 metals are very
What is reactive
300
A heterogeneous mixture may be _____ like muddy water or ____ like milk
What is suspensions & colloids
300
The distance an object travels per unit of time
What is speed
300
An electrical wall outlet is___ current
What is alternating
400
A substance that can absorb a great amount of thermal energy with little change in temperature is called a ____
What is coolant
400
groups 3-12 are called the what elements
What is transition
400
Sum of the number of protons and neutrons in an atoms nucleus
What is mass number
400
The amount of space occupied by an object
What is volume
400
Atoms are made of what 3 things
What is protons, neutrons, and electrons
500
Energy that is transferred between objects due to a temperature difference between the objects____
What is heat
500
The number 2 in the formula H20 tells you that each unit of this compound contains two ____ atoms
What is hydrogen
500
Positive and negative numbers that indicates how many electrons an atom has gained, lost, or shared to become stable
What is oxidation number
500
The mass per unit volume of a material
What is density
500
Why does the average atomic mass number of most elements have a decimal
What is it is the average number of all naturally occurring isotopes
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