ATOMIC STRUCTURE
Is the smallest subatomic particle with a negative charge
ELECTRON
Number of periods are in the modern periodic table
7
In Bohr's model of the atom, it is contained in specific energy levels
electron
Proposed the plum pudding model of the atom
Thomson
Is the description of chemical change
Chemical reaction
Is the charge of a proton
POSITIVE
This element is represented by the symbol 'Fe' on the periodic table
iron
What does the Bohr model suggest about the movement of electrons in an atom
Proposed that all things are composed of the atomos or the fundamental, indivisible particles, atoms; atoms cannot be destroyed; atoms are separated ...
Democritus
Are the initial substances in a chemical reaction
Reactants
Is the number of neutrons in an atom with an atomic number of 20 and a mass number of 40
20
Fluor belongs to this family in the periodic table
Halogens
Is the number of maximum number of electrons allowed in the second energy level
eight
Ernest Rutherford's gold foil experiment reveal this about the atom
The existence of the nucleus
The final substances during a chemical reaction
Products
Names of the subatomic particles found in the nucleus of an atom.
Proton and Neutron
Is the noble gas is found in period 1 of the periodic table
Helium
Is what the outermost energy level electrons are called
valence electrons
The model was proposed by physicist Niels Bohr in 1913. This model is known as
Planetary model
Is a graphic representation of a chemical reaction using numbers, letters and symbols
Chemical equation
This is what you do to calculate the number of neutrons in the nucleus
substract the atomic number from the atomic mass
Is unique about MERCURY among the metallic elements on the periodic table
it's the only liquid metal
First name of the scientist who developed this model
(Bohr's model)
Niels
J.J. Thomson contribute to the development of the atomic model by finding the existence of
The electron
In a chemical equation,is used to separate reactants from products
Arrow