what is the noble gas configuration of ca

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1s22s22p63s23p6

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  • What is the noble gas configuration for calcium?

  • So calcium, the noble gas immediately preceding it, we go up a row and then over and we see that the noble gas is argon, so we write argon in our brackets, and then, what electrons are not in argon? So we move down and we see that we have our 4s electrons, and we have two of them. So this is the noble gas configuration for calcium.

  • Why is noble gas notation used for electron configuration?

  • So, writing your electron configuration this way, using noble gas notation, makes it really obvious where your valence electrons are and what kind they are, so that’s helpful. We are going to go through one more example and that will be calcium.

  • What is the electron configuration of Ca2+2?

  • What is the electron configuration of Ca+2? The electron configuration of a Ca2+ ion is 1s22s22p63s23p6. The atomic number of calcium is 20. This means that in a neutral calcium atom, there are 20 protons in its nucleus. A neutral calcium atom also has 20 electrons. The electron configuration of a neutral calcium atom is 1s22s22p63s23p64s2.

  • What is the electron configuration of a neutral calcium atom?

  • The electron configuration of a neutral calcium atom is 1s22s22p63s23p64s2. A calcium 2 + ion has lost its two valence electrons, and now has 18 electrons.

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