1. What is Mendeleev is known for?
A. creating today's atomic model
B. discovering protons

C. publishing the first periodic table
D. discovering Mendelevium

Summarize possible ways in which phases of matter could combine to form a solution.

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?