how an atom is constructed indicating the location, charge, and number of protons, neutrons, and electrons

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

The rules of engagement (roe) working group is often used to (select all that apply.)

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.