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Halogens
Scientists
Atoms and Molecules
Acid or Base
100

This is a characteristic of mixtures cannot be separated using filtration.

What is homogeneous mixture that is a liquid?

100
The group the halogens belong to in the periodic table.
What is Group 7?
100
Discovered that electrons have a negative charge.
Who was J.J. Thompson?
100

What are the 3 subatomic particles?

What are electron, protons, neutrons

100

H2SO4

What is an acid?

200

This gas makes balloons float

What is helium?

200

The gaseous molecule formed when hydrogen reacts with the halogens.

What is hydrogen halide?

200
His model was the first to establish that the nucleus is the center of the atom.
Who was Ernest Rutherford?
200

This refers to an atom having a similar atomic number but a different number of neutrons?

What are isotopes?

200
Vinegar
What is a acid?
300

This is the chemical formula for hydrochloric acid

What is HCl?

300

The halogen elements. (name at least 3)

What are fluorine, chlorine, bromine, iodine, and astatine?

300
Stated that electrons travel the nucleus in a fixed orbit.
Who was Niels Bohr?
300

The identity of an element is determined by this

What is the atomic number? 

300

This acid is added to food to make it taste tart

What is a citric acid?

400

Element found in most organic compounds

What is carbon?

400
Halogen in the compound HCl.
What is chlorine?
400
His principle stated that it is impossible to know both the location and speed of an electron at the same time.
Who was Werner Heisenberg?
400

This molecule is known to be the "laughing gas"

What is NO?
400
Ammonia.
What is a base?
500

The amount of a substance (the solute) present in a given amount of a solution or solvent.

What is concentration?

500

This halogen used to prevent tooth decay.

What is fluorine?

500

He was the 1st to earn a PhD in chemistry from the University of California a wrote over 50 journal articles

Who was Lloyd Noel Ferguson ?

500

The most dominant element in the Earth's Atmosphere

What is nitrogen?

500
Distilled water.
What is neutral?