This is anything that takes up space ( has a mass )
Matter
100
Early people were producing these types of changes even though they didn't know what was happening. For example - extracting metals from ores and making jewelry .
chemical
100
Atomic numbers of an atom are the same as the number of what in an atom ?
protons
100
The inner part of an atom that contains the neutron is called the _________.
Nucleus
100
If an atom was enlarged so the electrons were spinning around the stands of a football stadium, how big would the nucleus be ?
marble
200
The smallest pieces of matter is called________.
Atoms
200
People thought you could turn iron and lead into what ?
gold
200
Carbon's atomic number is _________.
6
200
These particles have a positive charge and are found inside the nucleus.
proton
200
Atomic masses are measured in what ?
AMU
300
What type of particle holds protons and neutrons together nucleus ?
Mesons
300
The earliest form of chemistry was called________.
Alchemy
300
What element has a number of 56 ?
barium
300
these particles are located within the nucleus , and have no charge.
Neutron
300
A proton has the atomic mass of what ?
1
400
Up, Down, Charm, top and bottom are all names for what type of particle ?
Quarks
400
Names for elements comes from the English or __________ name.
latin
400
Why does hydrogen have an atomic number of 1 ?
because it only has one proton
400
These particles are negatively charge and found and are found outside the nucleus.
electrons
400
A neutron has the atomic mass of what ?
1
500
What type of particle are quarks held together by ?
Gluons
500
people first realized that an atom had a proton and an electron in which decade ?
10's
500
Some atoms have more _________ , which makes it an isotope and gives it a negative charge