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Which subatomic particle has a positive charge?
Electron
Proton
Neutron
Quark
Which subatomic particle has no charge?
Neutron
Up Quark
Proton
Electron
Which particle orbits the nucleus?
Proton
Neutron
Down Quark
Electron
How many quarks make up a proton?
3
2
4
1
What is the combination of quarks in a proton?
udd
uud
uuu
ddd
What is the combination of quarks in a neutron?
uuu
uud
ddd
udd
Which quark has a +2/3 charge?
Up
Proton
Down
Electron
Which quark has a –1/3 charge?
Down
Electron
Proton
Up
What determines the identity of an element?
Number of neutrons
Number of protons
Number of electrons
Number of quarks
What is an isotope?
Atoms of the same element with different neutrons
An atom with more electrons than protons
A particle inside the nucleus
Number of electrons
How do isotopes of the same element differ?
Number of electrons
Number of protons
Number of neutrons
Number of quarks
Which isotope of carbon is radioactive?
Carbon-12
Carbon-11
Carbon-13
Carbon-14
What is the atomic number?
Number of protons
Number of electrons
Number of neutrons
Total number of protons and neutrons
What is the mass number?
Number of protons
Number of neutrons
Number of electrons
Total number of protons and neutrons
Which statement is true about quarks?
Quarks have no charge
Quarks orbit the nucleus
Protons and neutrons are made of quarks
Quarks are found in electrons
How many neutrons are in Carbon-14?
6
7
14
8
