Question

12. Which electron configuraiton has 6 electrons on the OUTERMOST ENERGY LEVEL? 1s²2s²2p 3s²3p5 1s²2s² a. b. C. d. 4 1s²2s²2p 3s²3p 1s²2s²2p6 13. How many valence electrons does this element have: 1s²2s²2p 3s²? a. 12 C. b. 8 d. 3 2​

Answer 1

The electron configuration with 6 electrons on the outermost energy level is 1s²2s²2p³. An element with the electron configuration 1s²2s²2p 3s² has 8 valence electrons.

Step-by-step explanation:

The electron configuration that has 6 electrons on the outermost energy level is 1s²2s²2p³. In this configuration, there are 2 electrons in the 1s orbital, 2 electrons in the 2s orbital, and 3 electrons in the 2p orbital, which gives a total of 6 electrons on the outermost energy level.

The element with the electron configuration 1s²2s²2p 3s² has 8 valence electrons. Valence electrons are the electrons in the outermost energy level of an atom, and in this case, there are 2 electrons in the 2s orbital and 6 electrons in the 2p orbital, giving a total of 8 valence electrons.