Alpha particles. Alpha particles are made of 2 protons and 2 neutrons. This means that they have a charge of +2, and a mass of 4. (the mass is measured in atomic mass units, where each proton & neutron=1) We can write them as , or, because they're the same as a helium nucleus, . Alpha particles are relatively slow and heavy.
For more, visit TIME Health. 1  The average attention span for the notoriously ill-focused goldfish is nine seconds, but according to a new study from Microsoft Corp., people now generally lose concentration after eight seconds, highlighting the affects of an increasingly digitalized lifestyle on the brain.
So much so, that as you approach the pulpit, they slouch down in their seats. Theyâve already made up their minds that you are going to be dull and irrelevant. Thatâs one reason you donât have thirty minutes to get their attention. Thatâs how long you have to keep it. You only have 30 seconds to get their attention.If you donât grab those first thirty seconds, their minds will quickly divert to the happenings of last week or the plans for next week.heyâve already made up their minds that you are going to be dull and irrelevant. Thatâs one reason you donât have thirty minutes to get their attention. Thatâs how long you have to keep it. You only have 30 seconds to get their attention.