Lead-208 is formed by alpha decay (emission of alpha particles) from polonium-212.
In this case alpha particles are emitted.
No. We call it the "speed of light", but it's also the speed of radio, X-rays, heat, ultraviolet, microwave, gamma rays, etc, and all forms of electromagnetic radiation travel at the same speed, as long as they're in the same medium (vacuum or material substance).
Sound waves. All the others are forms of electromagnetic radiation (visible and invisible light).
No. Visible light is in between those particular forms of electromagnetic radiation. Radio waves are lower frequency (longer wavelength) than visible light. Gamma rays are higher frequency (shorter wavelength) than visible light.
X-rays, gamma rays, radio waves, and visible light are forms of electromagnetic radiation. Gamma rays are highest in energy compared to other electromagnetic radiations. Radio waves are least in energy in the whole electromagnetic spectrum.
Polonium-212 is formed by beta decay of bismuth-212.
In this case alpha particles are emitted.
The three major forms of emitted ionizing radiation are Alpha, Beta and Gamma.
Polonium-212 loses 2 protons and 2 neutrons when it decays to lead-208. These 2 protons and 2 neutrons are lost as a single Helium nucleus. In other words, it is an alpha decay.
The most common used isotope of polonium is polonium-210.
Polonium is a metal. It generally forms covalent compounds.
Heat fro. The sun is emitted in waves or rays, known as UVA and UVB rays. These rays are two forms of microwaves from radiation.
Gamma rays emitted by the radioisotope cobalt-60 have been found to be very effective in treating some forms of cancer.
Gamma rays emitted by the radioisotope cobalt-60 have been found to be very effective in treating some forms of cancer.
fluorescence
they are all forms of radiation
Polonium exists in two metallic allotropes (forms). The alpha form has a simple cubic crystal structure, and the beta form is rhombohedral.