Measurement
Scientist
Atom
Matter
Bonding
100
Liter
What is unit for volume?
100
Used the word atom
Who is Democritus?
100
Equal to the number of protons.
What is atomic number?
100
Iron.
What is an element?
100
A charged atom.
What is an ion?
200
Meter
What is unit for length?
200
Discovered the neutron.
Who is James Chadwick?
200
Same number of protons, different numbers of neutrons.
What is an isotope?
200
Table salt.
What is a compound?
200
Bond formed between a metal and a non-metal.
What is an ionic bond?
300
1 km= ___ m
What is 1000?
300
Proved that electrons existed.
Who is J. J. Thomson?
300
The subatomic particle with a mass of 1 amu and a charge of 0.
What is the neutron?
300
A substance having a definite shape and volume.
What is a solid?
300
Dissolves in alcohol.
What is a covalent bond?
400
251 cm= ____ m
What is 2.51 m?
400
Discovered atom was mostly empty space with a positively charged nucleus.
Who is Ernest Rutherford?
400
The sum of an element's protons and neutrons.
What is atomic mass?
400
Sand on the beach.
What is heterogeneous mixture?
400
Electrons in the outer energy level.
What is valence electrons?
500
Mass=40.1g. Volume = 8.20mL. Density=
What is 4.89g/mL
500
Believed that electrons traveled in specific orbits around the nucleus of an atom.
Who is Niels Bohr?
500
Atomic number of 17.
What is chlorine?
500
Particles seperate into layers.
What is a suspension?
500
Part of an atom involved in bonding.
What is valence electrons?