TED-ED: What is the shape of a molecule? - George Zaidan and Charles Morton

TED-ED: What is the shape of a molecule? - George Zaidan and Charles Morton

Assessment

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Physics, Science

KG - University

Hard

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The video explores the concept of molecular shape, emphasizing that molecules are mostly empty space with mass concentrated in atomic nuclei. Electrons form clouds of negative charge, influencing bonding. The video uses methane as an example to explain molecular bonding and 3D structure, highlighting that bonds are regions of negative charge that repel each other. Various molecular shapes like tetrahedron, pyramid, and bent structures are discussed. The video concludes by noting that complex molecules can have multiple stable configurations, leading to interesting chemical properties.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What primarily determines the shape of a molecule?

The color of the atoms

The size of the molecule

The arrangement of nuclei and electrons

The temperature of the environment

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the methane molecule, which atom is at the center?

Hydrogen

Oxygen

Carbon

Nitrogen

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the 3D shape of a methane molecule?

Linear

Tetrahedron

Hexagon

Square

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which molecule is shaped like a pyramid?

Methane (CH4)

Carbon dioxide (CO2)

Ammonia (NH3)

Water (H2O)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the shape of chlorine tetrafluoride (ClF3)?

Bent

Square planar

Linear

T-shaped