1. Astatine-210 undergoes alpha decay to produce? a. Polonium(Po) b. lead (Pb) c. Bismuth (Bi) d. Radon (Rn) 2. An atom

[answerhappygod]

1 Astatine 210 Undergoes Alpha Decay To Produce A Polonium Po B Lead Pb C Bismuth Bi D Radon Rn 2 An Atom 1 (41.33 KiB) Viewed 14 times

1. Astatine-210 undergoes alpha decay to produce? a. Polonium(Po) b. lead (Pb) c. Bismuth (Bi) d. Radon (Rn) 2. An atom has a mass number of 23 and 11 protons, how many neutrons are present a 10 b. 11 c. 13 d. 12 3. Which of the following statements is not true about radioactive decay? a. radio isotopes undergo decay until they reach a stable atom b. most isotopes of elements with atomic number 84 and higher are radioactive c. radio activity includes alpha, beta, and delta decay d. not isotopes can cause ionizing radiation 4 Elements of Group 7A are called? a. noble gases c. halogens b. alkali metals d. alkaline earth metals 5. The Iron (Fe) ion has 23 electrons, what is the charge of this ion? a. +3 b. +2 c. -2 d. -3 6. Which compound dissolves in water will produce an acid? a. CO c. CH₁ d.NH, b. CO, 7. Which statement is true about nuclear fusion? a. is the splitting of a nucleus into smaller nuclei with the release of energy b. is the uniting of nuclei into larger nuclei with energy being released c. the sum of the masses of fragments is not equal to the original mass minus energy d. energy released can be represented by E=mc² 8. Which of the following statements is INCORRECT? a. alpha decay results in mass number decreasing by 2 b. beta decay results in no change in mass number c. alpha decay results in a helium atom as one of the products d. gamma decay consist of high energy, short wavelength photon 9. Bismuth-210(Bi) undergoes beta decay to produce? a. Polonium-210 (Po) c. lead-210 (Pb) d. b. Thallium-210 (Ti) Astatine-210 (At)