Beta (β) is which letter of the Greek alphabet?
AnswerThe second
The Greek alphabet begins alpha, beta, gamma, delta.
Science · Facts & stats
Beta facts & stats
7 fact-checked facts about the letter beta, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
In software, what is a 'beta' version?
AnswerA nearly finished version released for testing
Beta releases let wider groups test software and report bugs before the final release.
Going deeper
A beta particle emitted in beta-minus decay is what?
AnswerAn electron
Beta-minus radiation is a fast electron; alpha particles are helium nuclei and gamma rays are photons.
The body converts beta-carotene into which vitamin?
AnswerVitamin A
Beta-carotene is a provitamin that the body can convert into vitamin A.
In beta-minus decay, a neutron changes into what?
AnswerA proton
In beta-minus decay a neutron inside the nucleus turns into a proton, and a fast electron is emitted.
Expert level
Carbon-14 turns into which element when it undergoes beta decay?
AnswerNitrogen
When a neutron in carbon-14 becomes a proton, the atom becomes nitrogen-14.
Along with an electron, beta-minus decay releases which nearly massless particle?
AnswerAn antineutrino
The antineutrino carries away some energy, which explained why beta electrons have a range of energies.
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