Chemistry: Atoms and Elements Flashcards

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1
Q

Describe the features and location of a proton

A

Positively charged
Around the same mass as a neutron
Located in the nucleus

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2
Q

Describe the features and location of a neutron

A

No charge
Around the same mass as a proton
Located in the nucleus

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3
Q

Describe the features and location of an electron

A

Negatively charged
1/2000th the mass of a neutron
Located in the shell/orbit around the nucleus

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4
Q

What is an atom?

A

The smallest unit of matter which forms a chemical element
Made up of protons and neutrons in the nucleus, with electrons orbiting

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5
Q

What is an element?

A

A pure substance where all the atoms are the same
Found on the periodic table

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6
Q

What is a molecule?

A

Two or more atoms chemically bonded together
Can be the same type of atom or different type

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7
Q

What is a compound?

A

A pure substance made with more than one type of atom chemically bonded together

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8
Q

What makes a gold atom a gold atom?

A

The number of protons in the nucleus of an atom

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9
Q

What is atomic number?

A

The number of protons in the nucleus of the atom.

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