7.1 - 1 Structure of Matter

Diamond and graphite are both solids made up of carbon atoms. Why is graphite softer than diamonds?

• They are different states of matter.

• Graphite is a compound and diamond is an element.

• Graphite is made up of more than one type of element.

• The arrangement of atoms vary in each substance.

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Which of the following is made up of extended structures with repeated subunits?

• Crystals

• Atom

• Helium

• Neutron

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A state of matter with a definite volume and shape

• Atom

• Solid

• Crystal

• Substance

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The building blocks of all matter; the smallest unit that retains the chemical properties of an element

• Crystal

• Substance

• Atom

• Solid

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Molecule

• Any form of matter that is uniform throughout and has consistent properties

• Solid material whose atoms, molecules, or ions are arranged in an ordered pattern

• The building blocks of all matter; the smallest unit that retains the chemical properties of an element

• Two or more atoms held strongly together by covalent bonds

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Which of the following models could represent a water molecule (H₂O)?

• H-H-O-O

• H-H-O

• H-O-O

• H-H

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Crystal

• Solid material whose atoms, molecules, or ions are arranged in an ordered pattern

• The building blocks of all matter; the smallest unit that retains the chemical properties of an element

• Two or more atoms held strongly together by covalent bonds

• A state of matter with a definite volume and shape

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NGSS.MS-PS1-1

Any form of matter that is uniform throughout and has consistent properties

• Atom

• Molecule

• Substance

• Solid

All of the following are examples of subatomic particles EXCEPT –

• Neutrons

• Protons

• Electrons

• Neurons

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When two or more atoms bind together, they form a/an–

• Cloud

• Atom

• Molecule

• Solid

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