As the elements in Group 17 are considered in order of increasing atomic number, the chemical reactivity of each successive element

(1) decreases

(2) increases

(3) remains the same

Are ionic compounds flexible or brittle

Which structures does a single cell organism need for movement?

What is the ratio of carbon atoms to oxygen atoms in this compound

On a hot sunny day, you get out of the swimming pool and sit in a metal chair, which is very hot. Would you predict that the specific heat of the metal is higher or lower than that of water? Explain.

Identify which sets of quantum numbers are valid for an electron. Each set is ordered (n, l, ml, ms). a. 3,1,1,-1/2b. 4,3,1,-1/2c. 2,0,0,-1/2d. 1,3.0,1/2e. 3,2,-1,-1/2f. 3,3,-1,1/2g. 3,2,1,-1h. 1,-1,-1,-1/2i. 3,3,1,1/2j. 3,0,0,1/2k. 4,3,4,-1/2l.

An isotope contains 56 protons, 54 electrons, and 74 neutrons. What is the identity of the isotope?

How many ozone particles are needed to form 24 particles of oxygen gas?

Calculate the molality of a 27.0% (by mass) aqueous solution of nitric acid.

What is the percent of carbon-14 remaining after two half-lives?

Determine the name of the compound Li2O