Atoms of elements on the left side of the periodic table have lower ionization energies than elements on the right. using your knowledge of ions you could infer that ionization energy refers to the energy needed for an atom to- a. lose electrons. b. gain electrons. c. form ionic bonds. d. form covalent bonds.

The ionization energy trend refers to the need of an ion to displace electrons, or lose them.  Your answer should be A, unless I didn't understand the question correctly.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.