Determine the half-life of carbon-14 if a 1218.70 gram sample diminishes to 152.34 grams in 17,190 years • A. 16.12 years
• B. 112.84 years
C. 5730 years
• D. 14.1 years

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it

In one or two grammatically correct sentences, write a definition for the term molecule geometry