General Science
Atomic Structure
The Periodic Table
Chemical Reactions
Climate Change
100

This is measuring system based on 10

metric

100

this atomic particle has a positive charge

proton

100

These elements can conduct electricity

metals

100

The first shell of a Bohr model can hold this many electrons.

2

100

Any form of water falling from the sky is called this.

Precipitation
200

This is what you think will happen in an experiment

hypothesis

200

this atomic particle has a negative charge

electron

200

The rows on the periodic table are called this.

periods

200

An ionic bond is between a metal and what type of element?

non-metal

200

Water that does not soak into the ground and flows across the surface is called this.

Runoff

300

this is something that is changed in an experiment

variable

300
This is the name for the center of an atom

nucleus

300

the columns on the periodic table are called this.

periods

300

The electrons in the outermost shells are called this.

valence

300

This is the trapping of heat by gasses such as carbon dioxide. q

Greenhouse Effect

400

Hitting a foul ball in the same spot every time is an example of

precision

400
This particle has essentially no mass

electron

400

This is the name of the non-reactive gasses in group 18

Noble Gasses

400
A covalent bond is between two of these types of elemenets.

non-metals

400

The short-term conditions outside that change daily.

Weather

500
There are this many meters in a kilometer

1000

500

This atomic particle has no charge

neutron

500

This is the group number of the alkaline earth metals

2

500

The second shell of a Bohr model can hold these many electrons.

8

500

This is the term for water vapor turning back into liquid water.

Condensation

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