Answer:
The rates of decay of radioactive elements
Explanation:
The age of a rock in years is called its absolute age. Geologists find absolute ages by measuring the amount of certain radioactive elements in the rock. When rocks are formed, small amounts of radioactive elements usually get included.
<span>polyethylene or polythene are the main ingredients </span>
B- 8.2980
C- 11.2603
F- 17.4228
Li- 5.3917
Na- 5.1391
I would say your answer is Na.
Somewhere in the Orange to red range
It is in period 3
It is in group 17
It is a chlorine atom because it has 17 electrons which means the atomic number is 17