Radioactive isotopes have been used commercially in:

smoke detectors

older watches with luminescent dials

sterilization of food

all of these applications

A bedroom has a volume of 118 m3 What is its volume in km3?

It is NOT possible for a virus to infect a bacterium. T or F

Now try a real-world example with more than 100 atoms. Start with 5.4 * 1012 radioactive nuclei of Lincolnium. Approximately how many nuclei would still be radioactive after four half-life cycles?

Which molecules have one lone pair of electrons on the central atom? CH4, HCI, H2O, or NH3?

What is the definition of cell theory

What is the intermolecular Force that causes water molecules to be attracted to each other? Ionic Bond Polar covalent bond Nonpolar covalent bond Hydrogen Bond What is the molecular geometry of a water molecule?

Justin Bleeber is a lazy young man and decides to burn a pile of leaves instead of bagging it. The pile of leaves weighed three pounds before being burned. After the leaves are burned the leftover ash weighs half a pound.

A diatomic gas has the molar mass 38.00 g/mol. What is a possible formula

Convert 3.5 x 10^23 K atoms to moles 0.58 moles 2.1 x 10^47 moles 5.8 x 10^45 moles 2.5 x 10^23 moles

Describe the composition of a lead storage battery