Phase changes
atomic numbers
periodic table of elements
bright line spectrum
units of measurment
100

What is a change from a solid to liquid called? 

the process of melting

100

Carbon's atomic number is

6

100

This is a chart which organizes the chemical elements.

The Periodic Table

100

What are bright line spectra?

an emission spectrum consisting of bright lines against a dark background.

100

Volume

Equals mass divided by density

200

what is the process called when it is a change from liquid to gas?

Evaporation
200

What element has a number of 56?

barium

200

what is atomic mass? 

The sum of the number of Protons plus Neutrons in the Nucleus.

200

What causes a bright line spectrum?





Spectral lines are produced by transitions of electrons within atoms or ions. As the electrons move closer to or farther from the nucleus of an atom (or of an ion), energy in the form of light (or other radiation) is emitted or absorbed.


200

Mass

Equals density times volume

300

what is the process called when it goes from liquid to solid? 

Freezing
300

Why does hydrogen have an atomic number of 1?

because it only has one proton

300

What is a Group?

Columns or multiple columns in the periodic table.

300

What are the 4 bright lines?

Sugar, Flour, Meals, and Quantities

300

Density

Mass divided by volume.

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