An atom has the following electron configuration.
1s22s22p63s23pⓇ4s23d3
How many valence electrons does this atom have?
A. 2
B. 3
C. 5
D. 11

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Which piece of equipment would me most useful for measuring the volume of some water? a. pan balance b. graduated cylinder c. tweezers d. flask quick

What shape would a molecule with two bound groups and two lone pairs have?