Chapter 23- Chemical Bonding Flashcards Preview

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Flashcards in Chapter 23- Chemical Bonding Deck (10)
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1

Describe covalent bonding in one snetence

Atoms share electrons

2

Describe how sodium and chlorine bond

Ionic Bonding
-sodium Na, chlorine Cl
-sodium configuration= 2,8,1, -chlorine configuration=2,8,7
-sodium gives electron to chlorine

3

What are usually the two states of the elements involved in ionic bonding

Metals and non metals
-metals want to loose electrons
-non-metals want to fill their outer shell

4

How do elements in an ionic bond actually *bond*?

One becomes positively ( looses electrons)
One becomes negatively (gains electrons)

Then they attract-> ionic bond is formed

5

What are the properties of ironically molecules?

-have v. Strong bond
-high boiling points
-conduct electricity when in liquid form
-soluble in water
-solids
-high melting points

6

What states are the elements involved in covalent bonding?

Non-metals, because they both want electrons

7

Describe the bonding in a water molecule

Covalent bonding
-H=1 electron each (want 1)
-O=8 electron (wants 2)
-2 H atoms cling onto O's outer shell
2+6= full outer shell

8

Describe an experiment to find out if a substance is ionic or covalent

-make a circuit with a battery, bulb, then a beaker of water with two electrodes in it (the circuit is unfinished because the electrodes aren't touching, and the water doesn't conduct)

-add substance to water

-if ionic-> the bulb will light

-if covalent -> the bulb will not light (hence why water isn't a conductor)

9

Covalent properties

-liquids/gasses
-insoluble
-don't conduct electricity
-low melting and boiling points

10

Describe ionic bonding in one sentence

-one looses electrons
-the other gains electrons