Chapter 5 Review Questions: Electrons in Atoms

Which is the electron configuration of an atom in the excited state?

• 1s²2s²2p²
• 1s²2s²2p¹
• 1s²2s²2p⁵3s²
• 1s²2s²2p⁶3s¹

Which atom in the ground state contains one completely filled p orbital?

• Ne
• O
• He
• Be

Tags

NGSS.HS-PS1-1

What is the total number of electrons in the second principal energy level of a calcium atom in the ground state?

• 6
• 2
• 8
• 18

What is the total number of electrons in the second principal energy level of a calcium atom in the ground state?

• 6
• 2
• 8
• 18

The atom of which element in the ground state has two unpaired electrons in the 2p sublevel

• fluorine
• nitrogen
• beryllium
• carbon

Tags

NGSS.HS-PS1-1

What is the total number of occupied s orbitals in an atom of nickel in the ground state?

• 1
• 2
• 3
• 4

Which atom in the ground state has only three electrons in the 3p sub level

• phosphorus
• potassium
• argon
• aluminium

Tags

NGSS.HS-PS1-1

What is the total number of occupied principle energy levels in a neutral atom of neon in the ground state?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-1

Which is the electron configuration of an atom in the excited state

• 1s²2s¹
• 1s²2s¹
• 1s²2s²2p¹
• 1s²2s²2p²

Tags

NGSS.HS-PS1-2

Which orbital notation correctly represents the outermost principle energy level of a nitrogen atom in the ground state

• (1)
• (2)
• (3)
• (4)