Particles
States
Changes
Periodic Table
100
The smallest negatively charged particle in the atom
What is the electron
100
The state of matter where the particles vibrate in a fixed position.
What is a solid?
100
The temperature at which a liquid becomes a gas.
What is the boiling point?
100
The top number of each element that is the number of protons in the atom.
What is the atomic number?
200
The positively charged particle in the nucleus
What is the proton
200
The state of matter where the particles move freely and have no definite shape or volume.
What is a gas?
200
The temperature at which a solid becomes a liquid.
What is the melting point?
200
The bottom number of each element in the periodic table that is the weighted average of the isotopes of that element.
What is the atomic mass?
300
The particle in the nucleus that has no charge
What is the neutron?
300
The state of matter that has a definite volume but no definite shape.
What is a liquid?
300
The temperature at which a solid becomes a liquid.
What is the melting point?
300
The sum of the protons and neutrons in the atom.
What is the mass number?
M
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