Chemistry Unit 1 Grade 11

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Chemistry

30 Terms

1

What is the formula for Carbonate ion?

CO3^2-.

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2

What is a polyatomic ion?

Polyatomic ions are ions made up of two or more atoms bonded together, which carry a net positive or negative charge.

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3

What is the mnemonic used to remember diatomic molecules?

HOFBrINCl.

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4

What is Fluorate?

The formula for Fluorate is FO3-.

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5

What is the formula for Chlorate?

The formula for Chlorate is ClO3-.

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6

What is the formula for Sulfate

The formula for Sulfate is SO4^2-.

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7

formula for Nitrate?

The formula for Nitrate is NO3-.

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8

Formula for Hydroxide

The formula for Hydroxide is OH-.

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9

Formula for Ammonium?

The formula for Ammonium is NH4^+.

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10

Formula for permanganate

The formula for Permanganate is MnO4^-.

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11

What is the formula for Phosphate?

The formula for Phosphate is PO4^3-.

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12

What is the formula for Bromate?

The formula for Bromate is BrO3-.

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13

What is Atomic Radii?

Atomic Radii is the size of an atom and is used as a unit of measurement to find the radius of an atom.

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14

What is the trend of Atomic Radii in the Periodic Table?

As you go to the bottom left of the Periodic Table, the atomic radius increases.

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15

What is Effective Nuclear Charge (Zeff)?

Zeff is the positive charge that pulls electrons towards the nucleus and is calculated as Zeff = #protons - #inner electrons.

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16

What is Ionization Energy?

The amount of energy required to remove an electron from an isolated atom.

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17

Where is the highest Ionization Energy found on the Periodic Table?

In elements closest to the top right corner, such as Noble gases.

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18

What is Electron Affinity?

A measurement of the attraction between the incoming electron and the nucleus.

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19

How do metals and nonmetals react according to their electron attraction?

Metals lose electrons and nonmetals gain electrons.

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20

What is an Ionic Bond?

A bond formed by the transfer of electrons between a metal and a non-metal to achieve a complete valence shell.

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21

What are properties of ionic substances?

They form a crystal lattice, have high melting/boiling points, and are hard but brittle in water.

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22

What is Covalent Bonding?

A bond between nonmetals where electrons are shared instead of transferred.

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23

What does the Octet rule state about bond formation?

It allows a maximum of 8 electrons in the valence shell.

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24

What does VSEPR stand for?

Valence Shell Electron Pair Repulsion.

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25

What does the formula AB#E# represent in VSEPR theory?

A is the central atom, B is the number of bonding electron pairs, and E is the number of non-bonding lone electron pairs.

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26

What shape does the Linear Diagram represent in VSEPR?

A straight line.

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27

What is the common feature of Noble gases regarding chemical reactivity?

They have a complete valence shell which makes them very stable and generally unreactive.

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28

What type of charge does an anion have?

A negative charge.

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29

What type of charge does a cation have?

A positive charge.

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30

How do you calculate Zeff for Carbon?

Zeff is calculated as 4 (number of protons) - 0 (inner electrons) = 4.

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