The number of valence electrons of elements in a group is the same as the group number
Answer:
Explanation:1 mole is equal to 1 moles CaCO3, or 100.0869 grams.
Answer:
Oh, you are supposed to look up the yearly temp, and yearly rain for a certain area. I did this before!
Nitrogen has 5 valence electrons (ve-), so a diatomic nitrogen molecule will have twice as many, 10 valence electrons. Then, just draw electrons in pairs of 2 until you both get ride of all of them (reach 0) and you fill every atom (eight electrons each). It can be drawn either way, the important thing is that there are 3 electron pairs shared between the two atoms.