Electronic configuration Flashcards
What do elements in the same group have in common?
-They react in a similar way
-Group number is number of electrons on outer shell
Are Group 1 metals or non-metals?
metals
Is Group 7 metals or non-metals?
non-metals
Is Group 0 metals or non-metals?
non-metals
What does alkali mean?
Very reactive
How did John Dalton order the elements?
Order of atomic weight
What did John Newlands discover?
-Every eighth elemt haf similar properties
-Produced table showing “Law of Octaves”
Where are the non-metals?
In the top right corner.
Where are the metals?
Found on the left and middle
What is an ion?
Particle that has lost or gained other electrons.
What are the rows on the periodic table?
These are called “periods” the rows going horozontally.
What are the collumns on the periodic table?
These are called “groups” the collumns going verticallly.
What are sub-atomic particles?
-Electrons
-Neutrons
-Protons
Is Group one reactive or unreactive?
VERY REACTIVE!!!! They are alkali metals so they are the most reactive group.
Which group is called the Alkali Metals?
Group 1.
What do elements in group 1 do when they react?
Get a full outer shell by losing 1 electron and forming positive ions with a +1 charge.
What do elements in group 7 do when they react?
Get a full outer shell by gaining 1 electron and forming negative ions with a -1 charge.
If Sodium’s atomic number is 11 what is the electronic configuration?
2,8,1
If Lithium’s atomic number is 3 what is the electronic configuration?
2,1
What does diatomic mean?
A molecule that is made up of 2 atoms of either the same or different elements
What does monatomic mean?
A single atom.
If Sodium has 1 electron on it’s outer shell will it need to lose or gain an electron to get a full outer shell?
Lose 1 electron to gain a full outer shell.
If Flourine has 7 electrons on it’s outer shell will it need to lose or gain an electron to get a full outer shell?
Gain 1 electron to gain a full outer shell because 8 electrons means a full outer shell.
What are the noble gases?
Hellium, Neon, Argon
Why are noble gases unreactive?
They all have full outer shells so they can’t lose or gain
