Which subatomic particle is not found at the center of the atom?

a. electron

b. neutron

c. nucleus

d. proton

Where are the most reactive nonmetal elements found on the periodic table? A. at the top of group 17 B. at the bottom of group 17 C. at the top of group 18 D. at the bottom of group 18

The mole in 196.5 g of Zn (NO3) 2

11) When salt and water are mixed, they form a solution like in the ocean. When sand and water are mixed, they form a mixture where the sand does not dissolve. Which statement might summarize this observation? A) Mixtures and solutions are the same.

How many shells will transition metals use to bond with other elements? (site 2)

Potassium, k, has an atomic number of 19 and an atomic mass of 39 how many electrons does a neutral atom of K have?

How would non secretion of of saliva effect digestion of food in the mouth.

Which of the following is insoluble in water? a." (NH) SO b. Na so c. Maso d. ZnSO e Baso

What is the difference between a root word and a combining form? List 2 examples of combining form

What is the octet rule and how does it explain the formation of ionic compounds?

Can somebody explain step by step how to solve decomposition reactions?