Pls do these sums

Pls do these sums QUESTIONS FROM EXAMINATION PAPERS ft. phen a of salt glows in 1b) An Into the of alpm Ihe the Of e Copy the of U clcs and through electric held cube Fig. 11.5 Name the radianon amongst the above '"ations. which has the least Fnerrattng 4. ("vy •nd convlete tix ntrlcar by filling blank 120041 S (a) How many alpha and beta particles "re decays 61 to (b) Mention two important precautions that taken while rntioactive materials. (c) State one use of radio isotopes, 120USl A nucleus emits a that leaves its mass unchanged. but increases its atomic by I, Identify particle and write its symbol 120061 State three properties that are common to and by rays and cathode rays 120001 8. will an alpha particle change into When it &-bs (a) One elætr«• (b) Two ekcmms? 10. 15. rays When h.ch dece.•ted in a held, differemes between the nucleus O w is o (b' iii •x and (ii) Give of backgrourd (a) Give that while materials (b) (i) the winch have number but numbers • ? (iii What is difference 'n atomic of sw A X alpha by particles to form Xv (a) complete Of A Z for (b) Out of (B) and gamma radiations — (i) which radiation the penetrating" (ii) Which radiations negatively Charged? Name the radioactive radiations Which have the 'cast penetrating v»wer. (b) Give one use of radio isotopes. What ismcant by background radiation? 120101 (a) Cotnplcte the following nuclear changes: (b) (i) Which radiation produces maximum biological damage ? (ii) What happens to the atomic number of an elernent when radiation named by you m part (i) above, are emitted. 120101 239