You could think about the neutron turning into a proton, and this is an oversimplified way of thinking about it. So in beta decay, an electron is ejected from the nucleus. We saw the helium nucleus in the previous video.

There are two protons in the helium nucleus and two neutrons. So for representing an alpha particle in our nuclear equation, since an alpha particle has the same composition as a helium nucleus, we put an He in here, and it has two positive charges, so we put a two down here, and then a total of four nucleons, so we put a four here.

So a neutron turning into a proton. An alpha particle has the same composition as a helium nucleus. In terms of charge, if we have zero charge on the left, plus one on the right, we need negative one right here. What else do we make? Therefore, we would have a zero here.

We already have two positive charges from our alpha particle, and so we need 90 more. So we went from neutrons on the left to neutrons on the right, and we went from 90 protons on the left, to 91 protons on the right.

So we need 90 positive charges. On the right, I have a negative charge here, so I have a negative one charge, and so I must need 91 positive charges, because 91 positive charges and one negative charge gives me 90 positive charges on the right.

So a neutron has no charge, so we put a zero here. And a neutron is a nucleon, so we put a one right here. So thorium is our other product.

And also actually, something else is produced. This is gamma decay. So we lost a neutron, and we gained a proton. These are pretty easy decay problems.

So technetiumm is actually used in several medical imaging and diagnostic procedures, because we have ways of measuring the gamma radiation, and so this is very useful in medicine. Well, minus 90, minus 90 gives us the number of neutrons. This is our beta particle. So minus 91 gives us neutrons.

I have a zero here, so I need nucleons. In terms of charge, I know charge is also conserved. Since there are two protons, the charge of an alpha particle is two plus. Charge is also conserved, so I have 90 positive charges on the left, I have 90 protons.

Well, I have four from my alpha particle, so I need more. I need 92 positive charges on the right. And in terms of charges, we have 43 positive charges on the left, we need 43 positive charges on the right.

We already talked about the number of protons, so we have 90 protons on the left, how many neutrons do we have? On the right, we have 91 protons, how many neutrons do we have?

So I need an atomic number of On the left, I know I have 92 protons, so 92 positive charges on the left. Well, once again, the number of nucleons is conserved, so I have nucleons on the left, I need on the right.

So I go ahead and draw in my two neutrons here. The important thing is to be able to look at a nuclear equation, recognize it as beta decay, and be able to write everything in your nuclear equation. What is happening in beta decay? So plus four gives me a total of on the right, and so therefore nucleons are conserved here.Equations can be written to show how a nucleus changes during a nuclear decay process.

With these nuclear equations we track the atomic number and the mass number. For this reason it is important to Uranium undergoes an alpha decay to produce thorium Writing Nuclear Equations Name _____ Chem Worksheet Title.

Nuclear Chemistry. Extra Practice Problems Radioactivity and Balancing Nuclear Reactions: Balancing Nuclear Reactions and Understanding which Particles are The isotope Ti–48 is produced by the alpha decay of which of. Rules for writing nuclear equations 1.

the masses on each side of the equation must be equal 2. the charges on each side of the equation must be equations for alpha decay, beta decay, and positron emission. An example is al so giv en of eac h.

Nuclear equations for alpha decay: n General format. Balancing Nuclear Equations You will need a periodic table in order to complete this activity.

Balancing Nuclear Equations Introduction This learning module is designed to help you learn how to balance nuclear reactions, or to help you review this topic before an exam.

Nuclear Decay You will need a periodic table in order to complete this activity. Standard: Students will know the three most common types of decay (alpha, beta and gamma) and how the nucleus changes in each type.

DownloadWriting alpha decay nuclear equations practice

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