Question: There is an element, Aluminum, in the samples you brought back that can be found at the third row of the Periodic Table. Lithium Atomic mass 6u Number of protons3 Atomic number 3 We know thatAtomic mass Number of protons Number of neutrons Therefore number of neutrons Atomic. Can you tell what it is, it after consulting the periodic table? Question: The second element present in your rock collection, has 25 protons but only 23 electrons. Periodic Table Information Name Lithium Atomic Symbol Li Atomic Number 3 Atomic Mass 6.941 Group. Number of neutrons mass number - atomic number For example, in lithium, Li. Presentation on theme: Lithium By : Monika Clark. Question: If the atomic number is 12, how many electrons are in one Magnesium atom? This is called the mass number ( or nucleon number ), A, of the atom. Question: What is the atomic number of an anion that has 5 neutrons and 4 electrons?Īnswer: less than 4 since an anion should have less protons than electrons Question: What is the atomic number of a neutral atom that has 5 neutrons and 4 electrons? Question: Can you turn the atom you created into a cation? Click the red submit button once you are done.Īnswer: Just take off one electron from the diagram In the case of most lithium atoms, this is three protons plus. Question: Can you create an atom with Mass Number of 3 and a neutral charge? Click the red submit button when you think you have it correct. The number of protons and neutrons in an atom's nucleus is called the atomic mass number. These means each atom contains 3 protons. *You can click the red button after only those because it will put on the neutrons for you! Updated on FebruLithium is the element that is atomic number 3 on the periodic table. Question: Can you create an atom with Atomic Number equal to 2? Click the red submit button once you think you have it correct.Īnswer: Put the following onto the holotable: You can lower your labpad and use the lithium structure on the holotable to help you. Question: What are the subatomic particles of an atom?
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