Valence Electrons
Number of valence electrons of every element that is in the same group as Nitrogen
5 valence electrons
Give an example of two elements that would create a covalent bond
any two nonmetals mentioned would be accepted
Name two element combos that would create an ionic bond
any metal + nonmetal
How many atoms of S are in: Al2(SO4)
1
In the CH4 which element would you put in the middle of the lewis dot structure
Carbon (C)
2 valence electrons
What is the total number of valence electrons shared in the bonds between the two carbon atoms in the molecule shown
(image on board)
6
Total number of valence electrons in this covalent bond C6H12O6
72 valence electrons
How do I know what the products are in the following chemical reaction: Mg + ZnCl2 → MgCl2 + Zn
they are on the right of the arrow. MgCl2 + Zn
Hydrogen (H)
The group that has all the valence electrons they need or could want.
group 18/ noble gases
Lone pairs on nitrogen (image on board)
1 pair
First step in creating an covalent bond lewis dot structure
Count the total number of valence electrons
In a chemical reaction mass is
never created nor lost
3 (triple bond)
Importance of valence electrons
they determine the chemical properties/chemical characteristics
Lone pairs on oxygen (image shown on board)
2 Pairs
Explain the octet rule
an element achieves 8 valence electrons to become stable/happy
Metal ___________ valence electrons
donate/lose/transfer
What is the total number of electrons shared in a double covalent bond between two atoms?
4
Helium has this many valence electrons
2 valence electrons
They share electrons
Draw the lewis dot structure for NH3
Nonmetals ____________ valence electrons
need/gain
Explain the type of bond between Ne and C (Neon and Carbon)
there would not be a relationship, Ne is in group 18