Set up the ion formation equations, with ionization energy values for each electron valence layer, dosatoms of the chemical elements below: a) Na z = 11 b) Ca z = 20 c) Sr z 38 d) Li z = 3 e) Cs z = 55 f) Be z = 43

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space

How many neutrons does an element have if its atomic number is 50 and its mass number is 166

What must be in balance for temperatures to remain constant?