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