Atom Structure
Periodic Table of Elements
States of Matter
Changing States of Matter
100
The center of the atom is called the. . .
Nucleus
100
The number 20 on this element square is the. . .
Atomic Number
100
This state of matter has a definite shape and volume.
Solid
100
True or False
Water can freeze or melt at the same temperature.
True
200
The positive charged particle in the nucleus is this. . .
Proton
200
Iron is the. . .
Element Name
200
This state of matter has no definite shape or volume.
Gas
200
The metric temperature at which water melts or freezes is this.
0˚Celsius
300
The particle with no charge is this. . .
Neutron
300
The decimal number 55.845 is known as the . . .
Atomic Mass
300
This state of matter has no definite shape, but does have a definite volume.
Liquid
300
A liquid can become a gas by doing this.
Increasing/gaining heat
400
The negative charged particle is called this. . .
Electron
400
The letters "Fe" are called this.
Element Symbol
400
In a solid, this is the motion of the particles.
Vibrate, vibrating, vibration
400
The process of changing from a liquid to a gas is called this.
Evaporation
500
These two types of particles are located in the nucleus.
Proton and Neutron
500
The elements fall into three categories. Name all three of them.
Metals, Nonmetals, Metalloids
500
This is what gas particles do when they are placed inside a container.
Spread out
500
The process by which a gas becomes a liquid is called this.
Condensation