The best answer is the isotope of strontium which is strontium-85. It has a half-life of about 64 days. The metal strontioum has four stable, naturally occurring isotopes which includes 84Sr (0.56%), 86Sr (9.86%), 87Sr (7.0%) and 88Sr (82.58%).
The letter only has reflection symmetry, if you rotated it it would look the same.
Answer:
A) I think I might be wrong :^
Answer:
<h3>B. CH3CH2CH2CH2CH2C1</h3>
Explanation:
I HOPE IT HELPS :)
