A lot of things, but I think you might be referring to which form of radiation since this is the classic answer as to what would stop Alpha radiation.
Furthermore tinfoil would stop alpha and beta radiation and lead would stop alpha, beta and gamma radiation.
Alpha particles can be stopped by a sheet of paper. Alpha particles have a low penetrating ability and can be easily blocked by even a thin barrier like paper because they have a relatively large size and positive charge.
A few millimetres of lead.
Alpha radiation is typically stopped by a sheet of paper while beta radiation can be blocked by skin. These types of radiation have lower penetrative power compared to gamma radiation, which requires thicker materials like lead or concrete to block effectively.
A typical sheet of paper is about 0.1 millimeters thick.
Both "sheet of paper" and "piece of paper" can be correct, but they are used in different contexts. "Sheet of paper" refers to a single flat piece of paper typically used for writing or drawing, whereas "piece of paper" can refer to a smaller portion or fragment of a larger sheet.
Alpha particles can be stopped by a sheet of paper. Alpha particles have a low penetrating ability and can be easily blocked by even a thin barrier like paper because they have a relatively large size and positive charge.
Alpha. Beta particles are blocked by a few mm of aluminum and gamma by a few cm of lead. Alpha. Beta particles are blocked by a few mm of aluminum and gamma by a few cm of lead.
A few millimetres of lead.
Alpha radiation is typically stopped by a sheet of paper while beta radiation can be blocked by skin. These types of radiation have lower penetrative power compared to gamma radiation, which requires thicker materials like lead or concrete to block effectively.
A SHEET of paper.
A typical sheet of paper is about 0.1 millimeters thick.
Both "sheet of paper" and "piece of paper" can be correct, but they are used in different contexts. "Sheet of paper" refers to a single flat piece of paper typically used for writing or drawing, whereas "piece of paper" can refer to a smaller portion or fragment of a larger sheet.
The Alpha Particle has a very short range and can be blocked with heavy paper shielding.
The term 'paper sheet' is a countable noun. The plural form is paper sheets.example: Nine paper sheets were attached to form one giant sheet.
One side of a sheet of paper is called a "page."
Une feuille de papier is a sheet of paper in French.
Alpha radiation is the least penetrative as it only travels a few centimeters in the air and can be blocked by a sheet of paper. Beta radiation can penetrate farther and is blocked by a thin sheet of aluminum. Gamma radiation is the most penetrating and requires dense materials like lead or concrete to block it.