Electron Configuration Basics

• Magnesium

• Aluminum

• Silicon

• Phosphorus

Tags

DOK Level 1: Recall

• Gallium

• Germanium

• Arsenic

• Zinc

Tags

DOK Level 1: Recall

When an atom loses an electron, it becomes a:

• positive ion

• negative ion

• neutral ion

• neutral atom

When an atom gains an electron, it becomes a:

• positive ion

• negative ion

• neutral ion

• neutral atom

According the "Octet rule", how many valence electrons does an atom need to have a stable electron configuration?

• 1

• 5

• 8

• 10

Which group in the periodic table has elements with a stable electron structure? (Full outer shell)

• Group 1

• Group 2

• Group 14

• Group 18 (Noble Gases)

How does Lithium become an ion?

• Lose 1 electron

• Gain 7 electrons

• Lose 3 electrons

• Gain 1 electron

How does Fluorine become an ion?

• Gain 1 electron

• Lose 1 electron

• Lose 7 electrons

• Lose 2 electrons

Tags

NGSS.MS-PS1-1

H and He are exceptions to the Octet Rule. How many electrons can they have in their outer shell?

• 1

• 2

• 8

• 10

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵

• 1s²2s²2p⁴

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹