This is after one half life.

A two year half life.

After one one half life, what happens?

So now you have, after one half life So

Let's think about what happens after another half life.

let's just call it x, and it has a half life of two years.

You know it has a two year half life.

Eleven radioisotopes have been characterized, with the most stable being 44Ti with a half life of 63 years, 45Ti with a half life of 184.8 minutes, 51Ti with a half life of 5.76 minutes, and 52Ti with a half life of 1.7 minutes.

So if you go back after a half life, half of the atoms will now be nitrogen.

All of the remaining radioactive isotopes have half lives that are less than 33 seconds and the majority of these have half lives that are less than half a second.

It has a half life of 35 days.

less than halfway through the Earth's life?

And we could keep going further into the future, and after every half life, 5,740 years, we will have half of the carbon that we started.

It has a half life of about three hours in humans.

The biological half life (the average time it takes for the human body to eliminate half the amount in the body) for uranium is about 15 days.

Now after another half life you can ignore all my little, actually let me erase some of this up here.

The most stable of these is 120m1Sb with a half life of 5.76 days.

The half life for the decay of is only 6.7(17) seconds.

Francium 223 is the most stable isotope, with a half life of 21.8 minutes, and it is highly unlikely that an isotope of francium with a longer half life will ever be discovered or synthesized.

Pyridostigmine is a short lived drug, with a half life of about four hours.

And one of those terms is the term half life.

It also has 35 radioisotopes, of which the longest lived is 125Sb with a half life of 2.75 years.

The most stable radioisotope is tritium, with a half life of 12.32 years.

So after one half life, if you're just looking at one atom after 5,740 years, you don't know whether this turned into a nitrogen or not.

It decays through neutron emission with a half life of (1.39 0.10) 10 22 seconds.

Omar? My...the great...my Omar?

It has a very short atmospheric lifespan of 11 14 days.

Studies of meteorites suggests that radioactive isotopes such as aluminium 26 with a half life of 7.17 105 years, and potassium 40 with a half life of 1.250 109 years, isotopes mainly produced in supernovae, were much more common.

Now there is no Omar.. they killed Omar

So if we go to another half life, if we go another half life from there, I had five grams of carbon 14.

So I have a description, and we're going to hopefully get an intuition of what half life means.

From the age of Omar Al Faruq to the revolutions of Omar Al Mukhtar.

Eighteen radioisotopes have been characterized, with the most stable being 53Mn with a half life of 3.7 million years, 54Mn with a half life of 312.3 days, and 52Mn with a half life of 5.591 days.

But could they have predicted this unprecedented spike less than halfway through the Earth's life?

Upon his return, however, Omer was detained by Shin Beit, only to reappear half a day later in an ambulance.

It decays through double neutron emission and has a half life of at least 9.1 10 22 seconds.

The President of the Preparatory Committee suggested that the other components of SAICM should be put in place first, and the Committee concluded that the issue was too complex to resolve without the benefit of intersessional analysis of the options.

Yes, Omar yes! No, not Omar.

Mission start up was probably the most critical phase in the life of a mission.

All of the remaining isotopes have half lives shorter than 1.6 days, and the majority of these have half lives less than 1.8 seconds.

It's lasted longer than your promises.

During pregnancy or the first year of a child's life, a marriage cannot be dissolved without the consent of the wife.

That means that by the age of five, you can't see as well for the rest of your life.

During the half century of the Fifth Republic, a bipartisan system of left and right has traditionally prevailed.

Umar!