Chemistry, 18.09.2021 03:10 finlchey3860
Use the periodic table to identify the number of core electrons and the number of valence electrons in each case below.
Potassium (K): 1s22s22p63s23p64s1
18 core electrons
1 valence electrons
Iron (Fe): [Ar]4s23d6
18 core electrons
8 valence electrons
Argon (Ar): [Ne]3s23p6
10 core electrons
8 valence electrons
Magnesium (Mg): 1s22s22p63s2
10 core electrons
2 valence electrons
Answers: 3
Chemistry, 21.06.2019 18:00
Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water
Answers: 2
Chemistry, 23.06.2019 03:50
Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products
Answers: 1
Chemistry, 23.06.2019 09:20
La reaccion entre monoxido de nitrogeno (no) y oxigeno para formardioxido de nitrogeno (no2) es un paso determinante para la formacion del smog, la reaccion es la siguiente: 2no + o2 = 2no2 cual sera el numero de moles de no2 que se formaran por la reaccion completa de 8 moles de oxigeno con suficiente monoxido?
Answers: 1
Use the periodic table to identify the number of core electrons and the number of valence electrons...
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