HELP STUDYING FOR SCIENCE TEST PLEASE? Thanks?

Question

1. WHAT IS HTE EFFECT ON THE MASS NUMBER AND CHARGE OR A NUCLEUS WHEN IT LOSES A ALPHA PARTICLE?

2. WHY DOES A GEIGER COUNTER OCCANSIONALLY CLICK EVEN IF NO ARTIFICIAL RADIOISOTOPES ARE NEARBY?

3. WRITE THE EQUATION FOR THE TRANSMUTATION THAT OCCURS WHEN AN ALPHA PARTICLE COMBINES WITH A NITROGEN-14 ATOM, EMITTING A PROTON?

4.WHY DO NUCLEAR REACTIONS PRODUCE MORE ENGERY PER MASS OF MATTER THAN CHEMICAL REACTIONS?

5. AFTER 36.9 YEARS, A SAMPLE OF HYDROGEN-3 CONTAINS ONE EIGHTH OF THE AMOUNT IT CONTAINED ORIGINALLY. WHAT IS THE HALF-LIFE OF THE ISOTOPE?

I HAVE TO KNOW THESE FOR MY TEST TOMORROW AND I CANT FIND THEM. I HAD 40 PROBLEMS BUT I CANT FIND THESE 5 IN THE BOOK. CAN SOME ONE PLESE HELP ME. IF I FLUNK THIS TEST IM IN DEEP TROUBLE. IT IS 20% OF MY GRADE IN THIS CLASS. PLEASE HELP ME WITH THE BEST ANSWER BUT SHORTEST AS POSSIBLE. THANKS SO MUCH TO WHO EVER HELPS ME!!!

Answer 1

0) DON'T SHOUT! IT'S CONSIDERED VERY RUDE!
1) Look up alpha particle on wikipedia. It will tell you how many protons and neutrons it's made out of. Every proton carries a +1 charge. Neutrons have no charge. Protons and neutrons are about the same mass.
2) Look up how geiger counters work.
3) That's something you can figure out from the composition of an alpha particle and the nitrogen atom.
4) That's in your book for sure.
5) Half life is when half the material is used up. If it takes 36.9 years to use up 1/8, it takes 36.9 * 4 to use up 1/2.

If you can't figure it out from there, you really don't deserve to be passing this exam. Study harder next time.

Answer 2

sorry im only an 8th grader