00:00I have made a solution for MCDS, which is descriptive.
00:04Because in chapter 27, there are nuclear,
00:08which is descriptive based.
00:10Like we are saying,
00:11identify the particle,
00:13acts in the following.
00:18Okay?
00:20Nuclear,
00:21and this is 4 beryllium,
00:25and this is helium.
00:28I have explained it completely.
00:31Look at the number first.
00:352 beryllium is 6.
00:38Usually, carbon is 6,
00:41and mass is 12.
00:43And if you look at the mass,
00:46then 4 beryllium is 9, 13.
00:48Because carbon is 12.
00:50Then there is one neutron extra.
00:54Then there is a neutron.
00:57Then there is a neutron, proton, neutron.
01:01Then there is a neutron, proton, neutron.
01:02Then there is a neutron.
01:04Then there is a neutron.
01:07This equation is 13-27 aluminum.
01:10And this is complete.
01:11The correct symbol is X.
01:15So,
01:16similar type of solution.
01:19Number 13 and 2,
01:2015.
01:21Phosphorus,
01:2235.
01:24And 17,
01:26and 14,
01:2827,
01:28and 4,
01:2931.
01:30It's become 31.
01:31It's become 31.
01:31It's become 31.
01:32It's become 31.
01:33So,
01:34what would it be?
01:35Neutron will become 0 and 1.
01:38Because there are options in this way.
01:410 even.
01:421H1.
01:442H4.
01:440 and 1.
01:450 and 1.
01:47Then,
01:47this is the theoretical of MC.
01:49So,
01:49I have to show you some kind of
01:53What is it?
01:54You can see.
01:55What is it?
01:55It's very easy.
01:57This is the way.
02:00The better is emitted by radioactive material.
02:03So,
02:03what happens?
02:05Electron orbiting around the nucleus.
02:09Then,
02:10this one.
02:11This is a big technical MC.
02:13MC number 4.
02:16I have to explain this whole.
02:23This is a bigorder.
02:23This is 90"-90.
02:27IESE is younger.
02:28200-180.
02:29BEFORE YOU GENERATILL
02:30This is alpha TK,
02:31number 2
02:32is not fallen,
02:321-2,
02:33supremacy has always changed.
02:3532.
02:3832 will be almost offended.
02:3832- trouble?
02:39The moving individual left?
02:39Except ten happens on the่ Ach toi.
02:41There,
02:41there are 4 ัะฐัั work.
02:42For three ab orada.
02:44The problem here.
02:48a, that the number also should be 8.
02:50When 9 is 80, it's 10.
02:56And 8 is 8, 2, 16.
02:58Because there are 2 protons,
02:591 number is 1, 1 alpha is 2.
03:03So it's 8, 2, 16.
03:04So, this is 16.
03:07If this is 10,
03:08then we will get 6.
03:11So, 8 alpha and 6 beta,
03:14this is the answer.
03:18This is the answer of the a,
03:21so, before you stop dwa,
03:25so,
03:27mass per source can be stopped.
03:31If the number of nucleus
03:32is in the underlying conscious
03:35Can you see any power offering?
03:48on to be okay you do simple see cheese
03:51in a
03:52a
03:53a
03:53a
03:53a
03:53a
03:56a
03:56a
03:56a
03:59a
04:17some
04:18a
04:20a
04:28a
04:29a
04:29Then the last explanation of half life, radioactive element, is 100 grams, 40 days, 16 grams of elements, two degrees,
04:41how do you do it?
04:43First, look at half life, time upon number of half life, so number of half life, time upon half life,
04:50you know, 400 upon 100, 4, and given that 16 is,
04:54then our short track, two giver, N, to divide, and number of half life is 4, so one year, it
05:01will be better, answer.
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