Using the periodic table, predict which elements will have similar chemical properties or reactivity. Nitrogen, sulfur, and bromine Rubidium, yttrium, and zirconium Magnesium, strontium, and barium Cadmium, calcium, and carbon

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.