Lithium and potassium have similar chemical properties because the atoms of both elements have the same

(1) mass number

(2) atomic number

(3) number of electron shells

(4) number of valence electrons

Calculate the molarity of a solution of HNO3 that contains 12.6 grams HNO3 in 1.0 L of solution? 0.2 M 63.0 M 12.6 M 5.25 M

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

Which components of the atom have no charge? None of the components have charges. neutrons electrons protons

Why do you suppose the population of the deer declined in 1925 although the predators were being removed

Scientific theories are always. a theory may be changed as a result of?

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of phosphoric acid (h3po4) and potassium hydroxide are combined. assume excess base. use the pull-down boxes to specify states such as (aq) or (s).

What are the coefficients that will balance the skeleton equation below? n + h ⟶ nh?

Restate Newtons first law in terms of acceleration

Why is burning is not a recommended method of disposing plastics

Why do cells have a plasma membrane? A. to separate protein from the nucleus B. to distinguish plants from animals C. to define the size of the cell D. to separate the inside of the cell from its enviroment