The diagram shows the electron configuration of an atom of an element for the electrons in the s and p orbitals. What is the group number of the element in the periodic table?
A) 1
B) 2
C) 13
D) 15

Imagine that you own a property that is exactly 2.2 acres large. you want to sell your property, but your realtor tells you that you cannot sell your land by the acre. in order to sell your land you need to determine the area you own in units of square meters? given that there are 1.6 kilometers in 1 mile and 640 acres in 1 square mile, what is the area of land that you own in square meters square meters?

What is the nature of the ca-cl bond in a molecule of calcium chloride (cacl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.16?

Which type of reaction always has an element and a compound as reactants