use the electron configurations and the periodic table to answer the questions: which element is this…

use the electron configurations and the periodic table to answer the questions: which element is this? fluorine (f) carbon (c) nitrogen (n) oxygen (o)

use the electron configurations and the periodic table to answer the questions: which element is this? fluorine (f) carbon (c) nitrogen (n) oxygen (o)

Answer

Explanation:

Step1: Determine the number of electrons

Count the electrons from the electron - configuration diagram. The 1s orbital has 2 electrons (one up - down pair), the 2s orbital has 2 electrons (one up - down pair), and the 2p orbital has 2 unpaired electrons. So in total, there are $2 + 2+2=6$ electrons.

Step2: Identify the element based on atomic number

The number of electrons in a neutral atom is equal to its atomic number. An element with an atomic number of 6 is carbon.

Answer:

B. carbon (C)