Each period represents once a principal energy level has been reached for an element.
Answer:
2.9 * 10^23 atoms Au
Explanation:
(95 g Au) * (1 mol Au/196.96657) * (6.02 * 10^23 atoms Au / 1 Mol Au)
2.9 * 10^23 atoms Au
The answer would be letter A
Answer:
The US surgeon general's 1964 report declared that smoking cigarettes was linked to cancer
The average global temperature of the Earth has increased by almost two degrees in the last century.
Explanation: