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PHYSICS 1
| Question | Answer |
|---|---|
| FROM RUTHERFOLDS ALPHA SCATTERING EXPERIMENT WE KNOW 2 THINGS ... | A POSITIVELY CHARGE NUCLEUS COMPOSED OF PROTONS AND NEUTRON THE ELECTRONS THAT SURROUND THE NUCLEUS. |
| WE USE NUCLEON FOR .... | PROTON OR NEUTRINO IN NUCLEUS. |
| THE ELECTRON ARE HELD IN ATOM BY.... | ELECTROSTATIC FORCE OF ATTRACTION BETWEEN THEM AND THE NUCLEUS. |
| RUTHERFORD'S EXPERIMENTS REVEALED THAT.... | THE NUCLEUS CONTAINS MOST OF MASS OF ATOM AND IT’S DIAMETER IS OF ORDER OF 0..00001 TIMES THE DIAMETER OF TYPICAL ATOM. |
| 3 FACTS ABOUT NUCLEUES ARE... | 1. ELECTRON HAS A SMALLER MASS THAN PROTON AND NEUTRON. 2. PROTON AND NEUTRON HAVE ALMOST EQUAL MASS. 3. THE ELECTRON EQUAL AND OPPOSITE CHARGE TO PROTON. THE NEUTRON UNCHARGED. |
| THE TOTAL NUMBER OF PROTON AND NEUTRON CALLED.... | (NUCLEON NUMBER (A) MASS NUMBER. NUCLEON (PROTON OR NEUTRON).Z AT BOTTOMS AND A AT TOP. |
| UNCHARGED ATOM HAS EQUAL... | NUMBER OF PROTONS AND ELECTRONS . |
| AN ION IS A CHARGED ATOM THAT HAS .. | GAINED OR LOST ELECTRONS. |
| EACH TYPE OF NUCLEUS CALLED.... | NUCLIDE LABELLED USING ISOTOPE NOTATION. E.G. A NUCLIDE OF C12-6 HAS 2 FEWER NEUTRONS AND 2 FEWER PROTONS THAN NUCLIDE OF OXYGEN ISOTOPE O-16-8. |
| SPECIFIC CHARGE IS ... | ITS CHARGED DIVIDED BY THE MASS. |
| WHTA HAS THE LARGEST SPECIFIC MASS .... | AND ELECTRON |
| STABLE ISOTOPE HAS A NUCLEI THAT.. | DOESN'T; T DISINTEGRATE SO STRONG NUCLEAR FORCE HOLDING IT TOGETHER , |
| IT OVERCOME THE ELECTROSTATIC FORCE OF REPULSION BETWEEN PROTON AND KEEPS IT STABLE. | |
| THE STRONG NUCLEAR FORCE HAS RANGE OF ... | NO MORE THAN 3-4 FENTOMETERS (FM) WHERE 1 FM – 10^-15 M. THIS RANGE IS ABOUT SAME AS DIAMETER OF NUCLEUS. |
| ELECTROSTAIC FORCE DECREASES AS.... | RNAGE DECREASES (ALTHOUGH IT DECREASES AS RANGE DECREASES. |
| AT SEPARATION SMALLER THAN THIS IT'S THE REPULSION THAT ACTS TO..... | PREVENT NEUTRONS AND PROTONS PUSHING INTO EACH OTHER. |
| THE EQUILIBRIUM SEPARATION IS WHERE.... | FORCE CURVE CROSSES X AXIS. |
| NATURAL OCCURRING RADIOACTIVE ISOTOPE RELEASE 3 TYPES OF RADIATION .... | ALPHA RADIATION – ALPHA PARTICLE WITH 2 PROTONS 2 NEUTRONS. SYMBOL IS 4-2 ALPHA. MASS NUMBER 4 Z NUMBER 2. |
| WHEN PARTICLE EMITS ALPHAS IT’S; NUCLEON NUMBER DECREASE BY.... | 4. THE NUCLEUS EMITS A PARTICAL AND FORMS A NEW NUCLEUS. |
| BETA PARTICLE EMISSIONS... | THE NEUTRON IN NUCLEUS CHANGES INTO PROTON AND THE BETA PARTICLE IS CREATED AND INSTANTLY EMITTED. |
| IN ALPHA EMISSION IF THE ATOMIC NUMBER CHANGES BY 2... | THE ELEMENT IS DIFFERENT. |
| BETA RADIATION CONSIST OF... | FAST MOVING ELECTRONS. IT HAS -1 CHARGE AND SMALLER PROTON MASS=0. |
| IN ADDITION TO BETA EMITS AN... | ANTIPARTICLE WITH NO CHARGE CALLED A ANTINEUTRINO (V-) IS EMITTED. |
| WHY DOES EBTA EMITS AN ANTINEUTRINO... | BECAUSE A NEUTRON CHANGES INTO A PROTON IN NUCLEUS |
| IN BETA EMMISON THE ATOMIC NUMBER NO.... | INCREASES BY 1.NUCLEON NUMBER THE SAME. |
| AT THE END OF BETA DECAY IS IT THE SMAE ELEMENT ?... | NO, NUCLEUS BELONGS TO DIFF ELEMENT. THIS HAPPEN TO NUCLEI WITH TOO MANY NEUTRONS. AZ (X)à A(Z+1)(Y) + -1 0 (BETA) + (V-) |
| WHT EQUATION FOR BETA DECAY ... | AZ (X)à A(Z+1)(Y) + -1 0 (BETA) + (V-) |
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ufuoma
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