What does the symbol "e3" represent?
a the energy required to remove the third valence electron
b the energy of electrons in the third energy level
c the energy required to remove an electron in the third energy level
d the energy required to remove three of the outermost electrons

The pressure in a fluid is affected by which characteristics of that fluid

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What causes the appearance of lines in a emission spectrum