Atoms are so tiny that we can't even see them with our most powerful microscopes. But we're getting close! Our most powerful microscopes allow us to see two large atoms stuck together. There are many different types of atoms and we call those elements. Elements (the kinds of atoms) combine to form molecules.
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Mar 06, 2017 · The electron dot structure depends on the number of valence electrons. To answer the question, you need to know the electron configuration of the atoms to see which one has 7 unbonded electrons, like chlorine. Fluorine, element number 9, has 2 electrons in the s sublevel (K shell). The L shell is incompletely filled, with 7 electrons.
Focus on Vocabulary 2 Student Book Answer Key. B. KEY TERM WORD CLASS DETAILS (Answers will vary.) 1. social position race, ethnicity, religion, class what family gives to children 2. self-concept idea of self is made up of race, ethnicity, religion, and class 3. hidden curriculum socializing force activities, sports, informal/formal messages; tell
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Lithium, which resides on the periodic table just below hydrogen, would be described as 1s 2 2s 1. The electron configurations of the first ten elements are shown below (note that the valence electrons are the electron in highest energy shell, not just the electrons in the highest energy subshell).
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