47-48 - Electron Shells and Compounds Flashcards
How many electrons does the first shell allow?
Two
How many electrons does the second shell onwards allow?
Eight
Which elements have full outer shells?
The noble gases - Group 0
What happens when the outer shell is not full?
The atom seeks to fill it by reacting with other atoms
What is the electronic structure for nitrogen? (7 protons)
2, 5
What is the electronic structure for argon? (18 protons)
2, 8, 8
What is the electronic structure for aluminium? (13 protons)
2, 8, 3
What is the electronic structure for an element with 5 protons?
2, 3
What is the electronic structure for an element with 10 protons?
2,8
What is the electronic structure for an element with 20 protons?
2, 8, 8, 2
What is another name for shells?
Energy levels
What is a compound?
Two are more chemically bonded elements
What kind of bond occurs between metals and non-metals?
Ionic bond
What does a non-metal compound consist of?
Molecules
Covalently bonded
