# How does beta decay affect the atomic number?

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Jun 29, 2014 Fix grammar, add examples, etc.

When an atom undergoes beta decay, the atomic number will increase by 1.

When an atom undergoes beta decay, one of the neutrons in the nucleus converts to a proton and an electron (and a lot of energy!). The electron is ejected from the nucleus and is called the beta particle. The proton stays in the nucleus and changes the identity of the atom, to the next higher atomic number. The atomic mass will stay the same. the resulting atom is usually more stable than the starting atom.

An example: Carbon-14 has 6 protons and 8 neutrons. When it undergoes beta decay, one of the neutrons changes to a proton and electron. The electron will get kicked out of the nucleus, and the final element will have 7 protons and 7 neutrons, making it Nitrogen-14.

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Teaching the how or why of an answer is the magic that helps students answer future questions like this on their own. Add detail, anticipate tough spots, & walk through the problem step-by-step.

Fix formatting

The easier the answer is to understand, the better it is for learning—this isn't an encyclopedia! Define complex terms, reword confusing jargon, & remember that longer isn't always better.

##### Important tips
• Summarize the answer first, then explain it
• Provide links for concepts you need to understand
• Don't copy without citing sources
##### More help
Start by giving a one sentence answer.

Then, explain in detail...
• "True, a beta particle i.e an electron, is emitted but ""^60Ni is ..."