An element that is malleable and a good condcutor of heat and electricity could habe an atomic number of

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

When balancing a chemical equation:

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?