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10 questions
What is the smallest unit of an element that retains its chemical properties?
molecule
atom
compound
cell
What are the three subatomic particles that make up an atom?
protons, neutrons, and positrons
protons, neutrons, and electrons
electrons, photons, and neutrinos
protons, electrons, and quarks
What kind of charge does a proton have?
Negative
Positive
Neutral
Positron
What kind of charge does an electron have?
positive
neutral
negative
reluctant
What kind of charge does a neutron have?
positive
negative
No charge, Silly!
It is neutral!
What is the ATOMIC NUMBER of an element?
The atomic number of an element is the number of protons in the nucleus of an atom.
The atomic number of an element is the number of neutrons in the nucleus of an atom.
The atomic number of an element is the number of electrons in the nucleus of an atom.
The atomic number of an element is the number of protons and neutrons in the nucleus of an atom.
What is the mass number of an element?
(Also known at the atomic mass)
The number of protons + neutrons
The number of neutrons in an element.
The number of protons in an element.
The atomic number of an element.
What is an ion?
An ion is a type of subatomic particle.
An ion is a form of radiation.
An ion is a type of chemical bond.
An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a positive or negative charge.
What is the difference between an atom and an ion?
An atom is composed of protons, neutrons, and electrons, while an ion is composed of only protons and electrons.
An atom is neutral, while an ion is charged.
An atom is smaller in size than an ion.
An atom has a positive charge, while an ion has a negative charge.
What is a molecule?
A molecule is a type of cell.
A molecule is a group of atoms bonded together.
A molecule is a unit of energy.
A molecule is a form of radiation.
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