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Atomic Structure and Electron Configuration Insights

Atomic Structure and Electron Configuration Insights

Assessment

Interactive Video

Chemistry, Science, Physics

6th - 8th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the structure of an atom, focusing on the nucleus and electron arrangement. It describes how electrons are organized in shells around the nucleus, with specific examples of elements like lithium, carbon, and magnesium. The tutorial also covers how the number of electrons in the outer shell determines an element's group on the periodic table and its reactivity.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the central part of an atom called?

Neutron

Proton

Nucleus

Electron

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a neutral atom, the number of electrons is equal to the number of what?

Protons

Neutrons

Nuclei

Atoms

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many electrons can the first shell of an atom hold?

Six

Eight

Four

Two

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the maximum number of electrons that can be held in shells after the first one?

Eight

Two

Four

Six

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the electronic configuration of lithium written?

Li 1 2

Li 1 1

Li 2 1

Li 3 0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a dot and cross diagram, what does the central black dot represent?

Proton

Nucleus

Electron

Neutron

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the electronic configuration of carbon?

C 4 2

C 6 0

C 2 4

C 2 2

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