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.
Build up your focus stamina. Each person may start off with a certain amount of focus stamina but rest assured that this is something that can be improved over time. To build your focus stamina, just give yourself a certain amount of time -- say, 30 minutes -- to do nothing but work on a certain task.When that time passes, see how long you can keep going before actually stopping, whether it's just another five minutes or another half hour.o build your focus stamina, just give yourself a certain amount of time -- say, 30 minutes -- to do nothing but work on a certain task.