Finding Mass Number
Protons + Neutrons
What type of charge does a proton and electron have?
electron = negative -
proton = positive +
What is another name for the Bohr model of the atom?
the planetary model
Draw a Bohr model of a Helium atom
hold up your answer to be checked.
Who was the scientist who came up with the atomic theory?
John Dalton
What is the mass number of an atom with 12 protons, 11 electrons, and 14 neutrons
26
An atom of oxygen has 8 protons, 7 neutrons, and 10 electrons. What is the charge on the oxygen atom
-2
In the Bohr Model what are the rings around the nucleus called?
orbitals
Draw a Bohr Model of an Aluminum atom.
apple sauce
This scientist was credited with discovering the negatively charged particle known as the electron.
J.J. Thompson
An atom of Cobalt has a mass number of 57. How many neutrons does it have.
30
Bonus: what do you have when the number of protons and electrons are not equal?
a neutral atom.
Bonus: an ion
What is the maximum number of electrons that can fit on the 3rd orbital of an atom?
8
Draw a Lewis model of an oxygen atom
nothing to see here
Discovered that atoms are mostly composed of empty space with positively charged nucleus and electrons outside of it.
Ernest Rutherford
How many neutrons are in an atom with a mass number of 76 and an atomic number of 29
47 neutrons
An atom of carbon has a positive 4 charge. How many protons and electrons does this atom have?
6 protons
2 electrons
How many electrons are able to fit on the first orbital?
2
Draw a Lewis Dot model of a Boron atom.
seriously why did you make me click this ):
It's just weird of you.....
James Chadwick
Discovered that there are neutral particles of matter within the nucleus of an atom called neutrons.
An atom of Mercury has mass number of 220. How many neutrons does the atom have in the nucleus?
140 neutrons
Iron has an atomic number of 32. How many electrons would it need to have to have a negative 3 charge?
35 electrons
What is included in a Lewis model of an atom?
The chemical symbol and only the valence electrons.
Mr. Bove is Cracked at Fortnite
The atomic theory consists of 5 major parts what are 3 of them? double if you get all 5.
All matter is made of atoms
Atoms are the smallest part of matter
Atoms can neither be created nor destroyed
Elements are only made of one type of atom
Atoms are mostly empty space