I NEED HELP PLS HURRY! Element “R” has a half-life of 2 minutes. After 6 minutes, how much of a 100 g sample would remain?

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.