Science-Chemical Unit Flashcards

1
Q

What is Oxygen

A

Non metal

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2
Q

What is Silicon

A

Metalloid

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3
Q

What is Neon

A

Noble gas

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4
Q

What is Magnesium

A

Metal

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5
Q

Oxygen and Carbon will:
A. Ionically bond
B. Covalently bond

A

B. Covalently bond

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6
Q

Magnesium and Flourine will:
A. Ionically bond
B. Covalently bond

A

Ionically bond

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7
Q

This type of bond involves the transfer of a valence electron

A

Ionic bond

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8
Q

Which element is most similar in behavior to
calcium (Ca)?

A

Magnesium

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9
Q

This type of bond involves two atoms sticking together

A

Covalent bond

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10
Q

How does the atomic radius change as you move left to right in Period 3 from aluminum through chlorine?

A

It decreases

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11
Q

How are all of the atoms in group 3 similar?

A

They all have three valence electrons in their outer shell

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12
Q

Which two groups are the most reactive?

A

Halogens and alkali metals

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13
Q

Which statement is the best reason why the atomic radius generally increases going down group/family of elements?

A

The number of shells increases

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14
Q

The greater the number of valence electrons…

A

The more attraction they have with the atomic nucleus

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15
Q

Each time you go down a period in the same family…

A

A valence electron is added

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16
Q

What is the Lewis dot structure for Boron (B)?

A

One electron on top, one on the right, one on the bottom

17
Q

What is the Lewis dot structure?

A

The way the valence electrons are placed in an atom

18
Q

How many neutrons are in Lead 214:
Protons: 83
Mass: 207.2

A

132 Neutrons

Subtract 214 and 83

19
Q

The law of conservation of mass states that

A

The total amount of mass before a reaction equals the total amount of mass after

20
Q

The mass of an electron is… than the mass of a proton

A

1000 times smaller