How did rutherford know that the nucleus was positively charged?

What differs between a radioactive isotope and a stable isotope? A. stable isotopes are shorter B. radioactive isotopes last longer C. radioactive isotopes last for less time d. there is no diffrence

The ph of a solution for which [OH] = 1.0 x 10^-4 is? A 10 B 14 C 11 D 9 E 7

If a object started moving have did it's velocity change?

C2H4 + O2 → 2C + 2H2O Mg + H2O → MgO + H2 N2 + 2O2 → 2NO2 S + O2 → S + H2O Which of the following is a valid combustion reaction?

From its electronic configuration, predict which of the first 10 elements would be most similar in chemical behavior to the as yet undiscovered element 168.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda