Multiple Choice
The element that has a valence configuration of 2s1 is ________.
A) Li
B) Na
C) K
D) Rb
E) Cs
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q118: How many quantum numbers are necessary to
Q119: Using Bohr's equation for the energy levels
Q120: What is the wavelength of light (nm)that
Q121: The energy of a photon of light
Q122: The valence shell of the element X
Q124: At what speed (m/s)must a 10.0-mg object
Q125: [Ne]3s<sup>2</sup>3p<sup>3</sup> is the electron configuration of a(n)_
Q126: The wavelength of light emitted from a
Q127: How many p-orbitals are occupied in a
Q128: The complete electron configuration of sulfur,element 16,is