Bohr Models and Lewis Dot
Make a Lewis Dot Model and a Bohr Model for the element Magnesium.
Lewis: 1,1
Bohr: P 12 N 12 2, 8, 2
Neon
1s^2 2s^2 2p^6
Atom
A basic unit of a chemical element.
Element
A basic unit of a whole.
What charge does every element listed on the periodic table have?
A neutral charge.
Make a Lewis dot model and a Bohr Model for the element Sodium.
Lewis: 1
Bohr: P 11 N 12 2 8 1
Silver
1s22s22p63s23p64s23d104p10
Atomic number
The number of protons in the nucleus.
Atomic Mass
The quantity of matter contained in the atom of an element.
Which weighs more, a proton or an electron? About how much more?
Protons weigh about 1836 times heavier then an electron.
Make a Lewis dot model and a Bohr Model for the element Nickle.
Lewis: 1, 1
Bohr: P 28 N 31 2, 8, 16, 2
Gold
1s22s22p63s23p64s23d104p65s24d105p66s24f145d9
Periodic Table of elements
An arrangement of chemicals in order of atomic number that groups elements with common characteristics in the same area of the table.
Valence Electron
a single electron or more electron in the outer shell of an atom responsible for chemical properties and bonding.
How do you find out how many electrons an element has?
You find the atomic number and they are equal.
Make a Lewis dot model and a Bohr Model for the element Potassium.
Lewis: 1
Bohr: P 19 N 20 2 8 8 1
Barium
1s22s22p63s23p64s23d104p65s24d105p66s2
Lewis Structure
A very simple representation of the valence shell of electrons in a molecule.
Bohr Model
Consists of a small nucleus (positively charged) surrounded by negative electrons moving around in orbits.
How do you figure out how many neutrons an element has?
You subtract the atomic number from the atomic mass then round.
Make a Lewis dot model and a Bohr Model for the element Selenium.
Lewis: 2,2,1,1
Bohr: P 34 N 45 2,8,18,8
Mercury
1s22s22p63s23p64s23d104p65s24d105p66s24f145d10
Electron cloud
Surrounding area outside of the nucleus where electrons are located.
Neuleus
Middle of an atom with protons and electrons.
Which elements are the most reactive and why?
All elements that end in 1 valence electron because they want to lose it to become balanced.