s and p - Elements are very, very stable when their largest ___________ orbitals are completely full., Chemical Isolation - Removing a chemical from a mixture and purifying it., Helium, Neon, Argon, Krypton - These are Noble gases, Helium - 25% of the Sun is made up of this gas, but not very much is found on Earth., Atomic Number - The number of protons in the nucleus of an element., Atomic Mass - The average mass of the atoms that make up an element., Mg - Has an Atomic number of 12., 1s -2, 2s -2, 2p - 6, 3s - 2 - Where does Magnesium put all its electrons?, 12 - How many electrons does Magnesium have?, Ionic compounds - Substances that are composed of positive and negative charges., 2- - What charge does Sulfur need to be stable?, 2+ - What charge does Mg need to be stable?, 7 - How many atoms are in the compound NaHSO4?, Phosphhorus - An elements most common Isotope has a mass of 31, what element is it?,
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Elements and Compounds 2
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U68528952
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Chemistry
Atomic structure
Periodic trends
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