Magnetism Ohms Law

What is the definition of matter?

• A type of energy that exists in a vacuum

• Anything that has mass and volume

• Anything that can be touched but lacks mass or volume

Which of the following is a characteristic of an element?

• It can be reduced into simpler substances through chemical means

• It is composed of molecules from different compounds

• It cannot be reduced to a simpler form by chemical means

A compound is defined as:

• A physical mixture of two or more elements

• A chemical combination of two or more elements

• The smallest particle of an element

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NGSS.MS-PS1-1

What is a molecule?

• Subatomic particle located in outer shell

• The smallest particle of matter that can exist and still maintain its identity

• A combination of one proton and one neutron

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An electron is best described as:

• A positively charged particle found in the nucleus

• A neutral particle located within the nucleus

• A negatively charged particle found outside the nucleus

Which of the following defines a proton?

• A negatively charged particle in an atom's nucleus

• A positively charged particle in an atom's nucleus

• A neutral particle found in the outermost shell

Neutrons are:

• Positively charged particles within the nucleus

• Neutral particles with a mass similar to protons

• Negatively charged particles that orbit the nucleus

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What is an ion?

• An atom that has lost or gained electrons

• A particle with an equal number of protons and electrons

• A positively charged neutron

Valence electrons are:

• Electrons found in the innermost shell of an atom

• Electrons that determine the chemical bonding properties of an atom

• Electrons that cannot participate in bonding

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A conductor is a material that:

• Has loosely bound electrons in its outer orbit

• Does not allow any electrical current to pass through

• Exhibits high resistance to electrical current