all large radioactive atoms decay into smaller atoms by releasing alpha particles. each alpha particle has 2…

all large radioactive atoms decay into smaller atoms by releasing alpha particles. each alpha particle has 2 protons, 2 neutrons, and 0 electrons. the table below describes several neutral, low - mass atoms.\n\n| stable isotopes of low - mass elements | | | |\n|--|--|--|--|\n| element name | symbol | atomic number | number of neutrons |\n| hydrogen | h | 1 | 0 |\n| helium | he | 2 | 2 |\n| lithium | li | 3 | 4 |\n| beryllium | be | 4 | 5 |\n\nan alpha particle is also referred to as a nucleus of which isotope?\no lithium - 7\no helium - 4\no hydrogen - 2\no helium - 2

all large radioactive atoms decay into smaller atoms by releasing alpha particles. each alpha particle has 2 protons, 2 neutrons, and 0 electrons. the table below describes several neutral, low - mass atoms.\n\n| stable isotopes of low - mass elements | | | |\n|--|--|--|--|\n| element name | symbol | atomic number | number of neutrons |\n| hydrogen | h | 1 | 0 |\n| helium | he | 2 | 2 |\n| lithium | li | 3 | 4 |\n| beryllium | be | 4 | 5 |\n\nan alpha particle is also referred to as a nucleus of which isotope?\no lithium - 7\no helium - 4\no hydrogen - 2\no helium - 2

Answer

Brief Explanations:

An alpha - particle has 2 protons and 2 neutrons. The atomic number of helium is 2 and helium - 4 has 2 neutrons along with 2 protons. So an alpha - particle is the nucleus of helium - 4.

Answer:

helium-4