Chemistry Unit 1 Grade 11

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Chemistry

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30 Terms

1
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What is the formula for Carbonate ion?

CO3^2-.

2
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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.

3
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What is the mnemonic used to remember diatomic molecules?

HOFBrINCl.

4
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What is Fluorate?

The formula for Fluorate is FO3-.

5
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What is the formula for Chlorate?

The formula for Chlorate is ClO3-.

6
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What is the formula for Sulfate

The formula for Sulfate is SO4^2-.

7
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formula for Nitrate?

The formula for Nitrate is NO3-.

8
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Formula for Hydroxide

The formula for Hydroxide is OH-.

9
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Formula for Ammonium?

The formula for Ammonium is NH4^+.

10
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Formula for permanganate

The formula for Permanganate is MnO4^-.

11
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What is the formula for Phosphate?

The formula for Phosphate is PO4^3-.

12
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What is the formula for Bromate?

The formula for Bromate is BrO3-.

13
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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.

14
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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.

15
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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.

16
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What is Ionization Energy?

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

17
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Where is the highest Ionization Energy found on the Periodic Table?

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

18
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What is Electron Affinity?

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

19
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How do metals and nonmetals react according to their electron attraction?

Metals lose electrons and nonmetals gain electrons.

20
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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.

21
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What are properties of ionic substances?

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

22
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What is Covalent Bonding?

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

23
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What does the Octet rule state about bond formation?

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

24
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What does VSEPR stand for?

Valence Shell Electron Pair Repulsion.

25
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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.

26
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What shape does the Linear Diagram represent in VSEPR?

A straight line.

27
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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.

28
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What type of charge does an anion have?

A negative charge.

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What type of charge does a cation have?

A positive charge.

30
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How do you calculate Zeff for Carbon?

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