electron configuration

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

• 3
• 6
• 8
• 10

Tags

NGSS.HS-PS1-1

There are __ energy levels

• 1

• 2

• 7

• 8

Tags

NGSS.HS-PS1-1

How many atomic orbitals are there in the p sublevel?

• 2
• 3
• 4
• 5

Which electron configuration belongs to Chlorine (Cl)?

• 1s² 2s² 2p⁶ 3s² 3p⁵
• 1s² 2s² 2p⁶ 3s² 3p⁶
• 1s² 2s² 2p⁶ 3s² 3p⁷

Tags

NGSS.HS-PS1-1

Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?

• Hund’s Rule
• Aufbau Principle
  
• Pauli Exclusion Principle

What does Pauli exclusion principle state ?

• states that each electron occupies the lowest energy orbital available
• states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins
• states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals

What does Hund's rule states ?

• states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals
• states that each electron occupies the lowest energy orbital available
  
• states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins

Tags

NGSS.HS-PS1-1

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Tags

NGSS.MS-PS1-1

How many electrons can a d sublevel hold?

• 14

• 10

• 2

• 6

Tags

NGSS.HS-PS1-1

How many orbitals does an s sublevel have?

• 1

• 3

• 5

• 7