Unit 2 Chemistry

Unit 2 Chemistry

10th Grade

31 Qs

quiz-placeholder

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Unit 2 Chemistry

Unit 2 Chemistry

Assessment

Quiz

Chemistry

10th Grade

Easy

Created by

Amaya W

Used 8+ times

FREE Resource

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define electronegativity.

The temperature at which a substance changes state.

The energy released during a chemical reaction.

A measure of the
ability of an atom
(or group of atoms)
to attract shared
electrons.

The measure of an atom's size.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Coulomb's Law for electronegativity?

It increases across a period, because it wants to fill its shell. It decreases down a group, because there is an increase in distance, leading to a decrease in force.

Coulomb's Law states that electronegativity increases with atomic size.
Electronegativity is defined by the distance between charged particles.
Coulomb's Law measures the strength of electronegativity directly.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define an ionic bond.

  1. An ionic bond happens when two metals bond by sharing electrons evenly.

An ionic bond (metal and non-metal) is a transfer of electrons, due to large difference in electronegativity between two atoms.

  • An ionic bond occurs when two atoms equally share electrons without charge separation.

  • An ionic bond forms between two atoms with the same electronegativity, leading to no electron transfer.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define a polar covalent bond.

A polar covalent bond (two non-metals) is where two atoms share electrons unequally, because of a moderate difference in electronegativity.

  • A polar covalent bond is when electrons are transferred completely from one atom to another, forming ions.

  • A polar covalent bond occurs when two atoms share electrons equally, with no charge separation.

  1. A polar covalent bond happens only between two identical nonmetals that have no difference in electronegativity.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define a non-polar covalent bond.

  • A non-polar covalent bond occurs when a metal and a nonmetal transfer electrons completely.

  • A non-polar covalent bond happens when one atom donates its electrons entirely to the other.

  1. A non-polar covalent bond forms when two atoms have a large difference in electronegativity, causing one atom to attract electrons more strongly than the other.

A non-polar covalent bond (two non-metals) is when the two atoms share electrons equally, because of little or no difference in electronegativity.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electronegativity difference range for a non-polar covalent bond?

Less than 0.5

  1. Exactly 0

  • Between 0.4 and 1.7

  • Less than 1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electronegativity difference range for a polar covalent bond?

1.8-2.5

2.6-3.0

0.5-1.7

0.1-0.3

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