Elements in the halogen group are

a. very reactive

b. have seven electrons in the outer shell

c. react to form salts

d. all of the above

Describe how the Meniscus is used to read the volume measurements on a graduated cylinder

1. Summarize How did the work of scientists who studied fossils support the theory of evolution?

Severe weather can occur along cold fronts. A) True B) False

A k atom differs from a k ion in that the k atom has one

Xco3 enter the group number of x

How many total electron will fit in the 1st energy level

Which statement best explains how the models differ? Model A shows the formation of ions, and model B does not show the formation of ions. Model A does not show the formation of ions, and model B shows the sharing of electrons.

What is the enthalpy of combustion (per mole) of C3 H8 (g) ?

Describe how speed, velocity and acceleration are related?

What is 3 ethyl 3, 4 dimethylheptane abbreviated structural formula?