Identify the element that contains 87 electrons

The mass of a diamond that has a volume of 0.35cm3

Does the volume change if a ballon is put in a freezer

The energy required to remove two valency electrons of a metallic atom is called? a. second ionization energy b. ionization energy. c. electron affinity. d. activation energy

Calculate the frequency 337.1 nm (wavelength of a nitrogen laser) with the final answer using 3 sig figs, and being in S^-1

Which of the following is not a result of air pollution? A. Smog B. Breathing problems C. Global warming D. Soil erosion

The reaction rate between reactants Z and Y is proportional to the cube of [Z]. What is the rate law for this reaction?

A metal surface becomes dull because of continued abrasion. chemical or physical

What types of tissues build the digestive system?

Chemical bonds? A.) Combine compounds to form elements B.) Hold atoms together to form compounds C.) Are always covalent D.) Are always ionic

What is the smalles lt unit of copper that still maintained the characteristics of copper