Chapter 4 Modern Chemistry

What is the constant for the speed of light?

• 3.00 x 10⁸

• 8.00 x 10³

• 3.08 x 10³

• 8.30 x 10⁸

Tags

NGSS.HS-PS4-1

What is Planck's Constant?

• 6.626 x 10^-34

• 3.426 x 10³⁴

• 6.896 x 10³⁴

• 9.45 x 10^-34

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

The lowest energy state of an atom is called the...

• ground state

• excited state

• static state

• charged state

The name for the energy state of an atom above the lowest energy state is called...

• ground state

• excited state

• charged state

• static state

Which of the following numbers are the four quantum numbers (select all that apply)?

• principal quantum number

• angular momentum quantum number

• magnetic quantum number

• spin quantum number

• orbital orientation quantum number

What are the possible values for the spin quantum number (select all that apply)?

• +1/2

• -1/2

• 1

• -1

Name the following principle:

An electron must occupy the lowest energy level that can accept it.

• Aufbau principle

• Hund's rule

• Heisenburg uncertainty principle

• Pauli's exclusion principle

What does the principle quantum number indicate?

• the main energy level of an atom

• the orientation of an orbital around a nucleus

• the spin of the electron

• the shape of the orbital

What is the electron configuration notation for Beryllium?

• 1s²2s²

• 1s²1p²

• 1s²2s²2p¹

• 1s⁴

Tags

NGSS.HS-PS1-1

Which of the following letters are used to indicate the shape of the orbitals around the nucleus (select all that apply)?

• s

• p

• d

• f

• e