CONCEPTUAL Physical Science PRACTICE SHEET Chapter 12: Atoms and the Periodic TableT olbohad ertl hap smoth it ! why Subatomic Particles Three fundamental particles of the atom are the and bing . "At the center of each atom lies the atomic which consists of and The atomic number refers to thewifi ru number of In the nucleus. All atoms of the same element have the same number of deal. hence, the same atomic number,mallinag books sell Isotopes are atoms that have the same number of but a different number of An isotope is identified by its atomic mass number, which is the total number of and in the nucleus. A carbon isotope that has 6 and 6 is identified as carbon-12, where 12 is the atomic mass number. A carbon isotope having 6 and 8 on the other hand, is carbon-14. ATE . GS1 1. Complete the following table: 32 40 Isotope OU Hydrogen-1 cor Chlorine-36 Potassium-40 Arsenic-75 Gold-197 2. Which results in a more valuable product - adding or substracting protons from gold nuclei? I got mcT I LIKE THE WAY YOUR ATOMS 3. Which has more mass, a helium atom or a neon ARE PUT TOGETHER ! atom? SIGHS 4. Which has a greater number of atoms, a gram of ol mert oy of helium or a gram of neon