With each higher energy level, the electrons are

• lower in energy

• more stable

• weaker

• farther from the nucleus

Tags

NGSS.HS-PS1-1

How many electrons are in 1s² 2s² 2p⁴?

• 5

• 6

• 8

• 13

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the correct representation for an orbital which has an "n" value of 4 and an "L" value of 2?

• 4d

• 4s

• 4f

• 4p

Tags

NGSS.HS-PS1-1

Which of the following sets of quantum numbers (n, l, m_l, and m_s) describes the valence electron of Na?

• 2, 1, 0, -½

• 2, 0, 0, -½

• 3, 1, 1, +½

• 3, 0, 0, +½

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Which orbital shows a violation of the Pauli Exclusion Principle?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-1

Which values can (n) be?

• only 0

• 0, 1, 2, 3...

• 1,2,3,4...

• -2 < n < +2

Which set of Quantum numbers is not allowed

• (3,1,1,-1/2)

• (2,1,-2,+1/2)

• (4,2,-1,-1/2)

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Tags

NGSS.HS-PS1-1

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵
• 1s²2s²2p⁴
• 1s²2s²2p⁶
• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Tags

NGSS.HS-PS1-1