Do H, K, Rb, Fr, have the same number of valence electrons or same number of energy levels

What is another way to determine mass times acceleration?

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent

Which of two curves exhibits exponential growth