Which two simple machines are employed in a pair of scissors? lever and inclined plane a: lever and wedge b: wheel and axle and lever c: inclined plane and wedge d: description

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

1) this is the structure in the cell nucleus that houses a cell's genetic information

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.