This means that K shell have 2 electrons L shell have 8 electrons M shell have 18 electrons and so on. Start studying Ch 18 Worksheets Jaubert. Periodic Table And Reactivity Lesson Plan A Complete Science Lesson Using The 5e Method Of Instruction Science Lessons Periodic Table Lesson The atom with 68 neutrons and 50 protons has a mass number of. . Neon atomic number 10 C. The alkaline earth metal that has 18 electrons as a stable ion. Which of the following is an example of an anhydrous compound. Neon atomic number 10 is a stable element. Which of the following elements is stable. Neon atomic number 10 C. Therefore electronic distribution of given elements will be as follows. A H2O b CaSO4. 44 rows Of the first 82 elements in the periodic table 80 have isotopes considered to be. Which of the following elements is stable. Ii 20 Ca and 4 Be are the two elements that belong to group 2 of the ...