Answer:
in 1898 the Curies discovered two new radioactive elements: radium (named after the Latin word for ray) and polonium (named after Marie's home country, Poland).
Step-by-step explanation:
Radium
Polonium
Step-by-step explanation:
yikes that's hard GG bro
4/20=x/100 20 times 5 equal 100 so 5 times 4 equals 20 so the answer is 20%
Answer:
You can rewrite it to figure out the square root of 20 which would give you the value 4.47214...
Step-by-step explanation: