Atomic Science

What is the smallest unit of an element that retains the properties of that element?

• cell

• molecule

• nucleus

• atom

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Photon

• Electron

What is the atomic number of oxygen?

• 6

• 10

• 12

• 8

What is the symbol for the element sodium?

• Na

• Sd

• So

• Nm

In a chemical reaction, what happens to the atoms of the reactants?

• Atoms of the reactants remain unchanged

• Atoms of the reactants are rearranged to form products.

• Atoms of the reactants disappear completely

• Atoms of the reactants are destroyed in the process

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the mass number of an atom?

• Total number of protons

• Total number of electrons + protons

• Total number of electrons

• Total number of isotopes

• Total number of protons + total number of neutrons

What is the name of the process where atoms of one element rearrange to form a new substance?

• Elemental fusion

• Atomic transformation

• Chemical reaction

• Molecular shift

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which subatomic particle is responsible for the chemical behavior of an atom?

• electron

• proton

• neutron

• photon

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the atomic symbol for gold?

• Pt

• Fe

• Au

• Ag

What is the name of the bond that involves the sharing of electrons between atoms?

• Covalent bond

• Ionic bond

• Metallic bond

• Hydrogen bond

Tags

NGSS.HS-PS1-1