Question

1. What is the atomic symbol for silver?
2. What is the atomic mass of mercury?
3. Ni is the symbol for what element?
4. The element that has the atomic number 17 is?
6. Cu, Ag, and Au are all in what group #
7. What is the symbol for element with atomic number 74?
8. What is the atomic mass of copper?
9. What is the last element in period 4?

Answer 1

1. Simbolo Ag numero atomico: 47
2. Masa atomica del mercurio 200,59 u ± 0,02 u.
3. Niquel.
4. Cloro.
6. El grupo 11.
7.w.
8. 63,546 u ± 0,003 u.
9. Kriptón.