MY Electron Config Practice

How many neutrons are in the nucleus of the atom ¹⁷₉F?

• 17
• 9
• 8
• 7

Tags

NGSS.MS-PS1-1

Atoms of ²³⁵U and ²³⁸U differ in structure by three (3)

• electrons
• isotopes
• neutrons
• protons

What is the correct configuration for lead?

• [Rn] 6s2  4f14 5d10 6p2
• [Xe] 6s2 6d10 6p2
• [Xe] 6s2 5d10 6p2
• [Xe] 6s2  4f14 5d10 6p2

Tags

NGSS.HS-PS1-1

The electron configuration of an atom is 1s22s22p6. The TOTAL number of electrons in the atom is

• 3

• 6

• 8

• 10

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is incorrect about this orbital diagram?

• Both arrows in the 2p box should be pointing up
• There is nothing incorrect with this diagram
• There should be one electron in the first 2p box and one in the 2nd 2p box
• All the arrows should be pointing up.

Tags

NGSS.HS-PS1-1

This orbital diagram represents:  

• C
• B
• N
• O

Tags

NGSS.HS-PS1-1

This orbital diagram represents:  

• C
• B
• N
• O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

In an orbital diagram,  an arrow represents: 

• an electron
• an orbital
• an element

The maximum number of electrons that can be placed in a single orbital.

• 2

• 6

• 10

• 14

Which orbital shows a violation of the Pauli Exclusion Principle which states that a maximum of 2 electrons can be in an orbital and they must have opposite spins.

• A

• B

• C

• D

Tags

NGSS.HS-PS1-2