6) The first step in the decay series of 238U (238U to 234Th) has a half-life of 4.51 x 10'yr. 238U -> 234 Th
+ bX
for a, -18, y, and +18 type in the actual words alpha, beta, gamma and positron or the element
with the mass number (e. g. "Carbon-12")

the volume of fluid displaced would equal the volume of the gas. use a gas syringe - this is a laboratory instrument that can be used to withdraw a certain volume of gas from a closed system or to measure the volume of gas from a chemical reaction.

they are made of gases.

they have a spherical shape.

they make energy through fusion.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying