3.1b.1-2 Covalent bonding in simple molecular elements and compounds

• Chem
• Secondary Education

Chapter 3.1b.1-2

Covalent bonding in simple molecular elements and compounds

19-09-2022

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• I can describe the formation of covalent bonds in simple molecules by drawing a dot-and-cross diagram correctly.
• I can describe the formation of covalent bonds in simple molecules by using an digital, interactive tool (MolView).

GOALS

Molecules containing TWO atoms are called _________.

1. monatomic
2. diatomic
3. compounds
4. mixtures

Chemical bonding formed by the sharing of one or more pairs of electrons between two atoms is called ________.

1. covalent bonding
2. ionic bonding
3. metallic bonding

Is fluorine a diatomic molecular element?

1. Yes
2. No
3. Slightly

A covalent bond is formed by the sharing of a pair of electrons between two atoms, leading to ________ configurations.

1. orbital electronic
2. noble gas electronic
3. electronic

In covalent bonding, each atom contributes _______ electron to each bond.

1. three
2. two
3. eight
4. one

Molecules are formed from atoms linked together by _______ bonds.

1. ionic
2. molecular
3. covalent
4. strong

Bigger atoms form smaller molecules.

1. Truth
2. Incorrect

• represent the bonding in a molecule and electrons in an ion
• only the outer (valence) electrons and outer (valence) shell are shown

DOT AND CROSS DIAGRAM

• Hydrogen

• Oxygen

• Nitrogen

DOT AND CROSS DIAGRAM

molview.org

WILF Self - Evaluation: Choose the one(s) that apply (ies) to you.
1 - I know what I'm learning.
2 - I did what I supposed to do today.
3 - I recognize why I'm learning and doing this.

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1 and 2

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