IG Chemisry-Competition 2

IG Chemisry-Competition 2

Assessment

Flashcard

Chemistry

6th - 8th Grade

Hard

Created by

Wayground Content

FREE Resource

Student preview

quiz-placeholder

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the significance of the periodic table in determining an atom's valence electrons?

Back

The periodic table is organized in columns (groups) that indicate the number of valence electrons in the outer shell of an atom. Elements in the same group have the same number of valence electrons.

2.

FLASHCARD QUESTION

Front

What happens to energy when bonds are formed between molecules?

Back

Energy is released when bonds are formed between molecules, making the process exothermic.

3.

FLASHCARD QUESTION

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons.

4.

FLASHCARD QUESTION

Front

What is an ionic bond?

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions.

5.

FLASHCARD QUESTION

Front

How do you determine the number of protons in an atom?

Back

The number of protons in an atom is equal to its atomic number, which is found on the periodic table.

6.

FLASHCARD QUESTION

Front

What is the octet rule?

Back

The octet rule states that atoms tend to form bonds in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

7.

FLASHCARD QUESTION

Front

What is the difference between a polar and nonpolar covalent bond?

Back

A polar covalent bond occurs when electrons are shared unequally between two atoms, resulting in a molecule with a partial positive and negative charge. A nonpolar covalent bond occurs when electrons are shared equally.

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

By signing up, you agree to our Terms of Service & Privacy Policy

Already have an account?