what is the noble gas configuration of ca

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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 for calcium in 1s orbital?

  • In writing the electron configuration for Calcium the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for Calcium go in the 2s orbital.

  • How do you find the noble gas configuration of sodium?

  • A noble gas configuration of an atom consists of the elemental symbol of the last noble gas prior to that atom, followed by the configuration of the remaining electrons. So for sodium, we make the substitution of [Ne] for the 1 s2 2 s2 2 p6 part of the configuration. Sodium鈥檚 noble gas configuration becomes [Ne]3 s1.

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