Who came up with an idea in 460-370 BC that atoms existed , couldn't split or destroy them?
Dalton
Democritus
Thomson
Rutherford
Who came up with an idea in 1800's that atoms are hard spheres with differing properties?
Who discovered electrons in 1897 and came up with the Plum Pudding model?
Who had a gold foil experiment in 1911 that made the plum pudding model wrong , and came up with an idea that most of an atom is an empty space?
What did Bohr-Rutherford came up with in 1912?
He came up with an idea that electrons are in energy shells and they orbit around the nucleus
He came up with an idea that nucleus are full of dejunctional energy
He came up with an idea that atoms are small hard spheres
He came up with an idea that people just dream so big but end up in a street.
He came up with an idea that the atom particles consists of further smaller parts.
Electrons always the number of protons
Protons have a charge of and a mass of
Electrons have a charge of and a mass of
Neutrons have a charge of and a mass of
Atomic mass and mass number the same thing?
Mass number // Atomic mass : It is the number of and in an atom . *Put it in plural form and make the answer with a letter P starting on it first.*
Which one is the atomic mass and the atomic number?
Get a periodic table and fill the missing answers.
Isotopes are the different atoms of the same element containing the number of but different amount of .
Isotopes , fill in how many protons and neutrons in each isotope . Ignore the electrons .
created the periodic table in , he arranged it in order of atomic mass.
Electron configuration. The first energy shell can hold a maximum of electrons , the second and so on can hold a maximum of electrons.
The electric configuration for sodium is 2...
An Ion is an charged particle
Ionic bonding= of .
One way of atoms of different elements forming chemical bonds to make a new compound is by IONIC BONDING
The element that loses its electron will become and the element that gains the electron will become
Which one is the Anion and the Cation?
Read the image .
Read the image.
What's the name of the new compound ?
In potassium sulfate , there's potassium , sulphur , and .
Depending on the group number , you can find out the valency number.
From group number 1-8 , list the valencies from the 1st group number to the last.
1 , 2 , 3 , 4 ,3 , 2 , 1 ,0
2 , 6 , 8 ,10 , 12 ,14 ,16 , 18
3 , 2 , 4 ,1 , 5 , 6 ,7 ,8
The diatomic elements are B , I , n , chlorine , oxygen , and fluorine .
Transition metals valency is always unless told otherwise by Roman numerals.
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