The electron configuration of an atom can be determined by identifying first the right order of the electron shells. The atomic number of Magnesium is 12 so we expect the electrons also sum up to 12. The condensed electron configuration is Ne 3s2. The complete configuration is 1s2 2s2 2p6 3s2.
An example of a chemical property
2Na + O₂ = Na₂O₂
2Na + 2H₂O = 2NaOH + H₂
Answer:
D
Explanation:carbon dioxide plz mark brainliest
Answer:
yellowish orange with gas flying off of it
Explanation:
the sun is made up almost entirely of gas
From my understanding the correct answer would be phyical