Search results 6782 items matching your search terms. Filter the results Item type Select All/None Collection File Folder Image Link Movie Page Question Quiz Quiz History New items since Yesterday Last week Last month Ever Sort by relevance date (newest first) alphabetically What are the atomic number and the mass number of carbon atoms? by Dr. Osama M. Khaled — published Sep 16, 2022 — last modified Sep 16, 2022 08:48 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory What are the number of protons and neutrons in the nucleus of an isotope of uranium? by Dr. Osama M. Khaled — published Sep 16, 2022 — last modified Sep 16, 2022 09:36 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory What are the atomic number and the mass number of a tin atom? by Dr. Osama M. Khaled — published Sep 16, 2022 — last modified Sep 16, 2022 09:39 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory Atomic symbol conventions by Dr. Osama M. Khaled — published Sep 16, 2022 — last modified Jul 03, 2025 12:29 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory The elements on the periodic table are listed in order of ________ atomic number by Dr. Osama M. Khaled — published Sep 16, 2022 — last modified Oct 31, 2023 09:34 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory simple-periodic-table.jpg by Dr. Osama M. Khaled — last modified Sep 17, 2022 11:15 PM Located in Chemistry / … / Atomic Theory / The elements on the periodic table are listed in order of ________ atomic number You can use the periodic table to immediately identify metals and nonmetals by Dr. Osama M. Khaled — published Sep 17, 2022 — last modified Sep 17, 2022 11:18 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory Metals are in the upper right corner of the periodic table by Dr. Osama M. Khaled — published Sep 17, 2022 — last modified Sep 17, 2022 11:18 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory There is an easy way to represent isotopes using the atomic symbols by Dr. Osama M. Khaled — published Sep 17, 2022 — last modified Jul 03, 2025 12:29 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory For the isotope of carbon that has 6 protons and 6 neutrons, the symbol is by Dr. Osama M. Khaled — published Sep 17, 2022 — last modified May 30, 2025 09:50 PM Located in Chemistry / Atoms, Molecules, and Ions / Atomic Theory < Previous 10 items 1 ... 139 140 141 142 143 144 145 ... 679 Next 10 items > Subscribe to an always-updated RSS feed.
