C1 Atoms Flashcards
What is the charge and relative mass of protons, neutrons, electrons
Proton +1, 1
Neutrons 0, 1
Electrons -1, 0.0005
What is the atomic mass and atomic number
Mass is the top number (proton, neutron)
Atomic number is bottom (proton)
What is a element
Atom with same atomic number
What is a isotope
Different forms of the same element
Same proton, different neutron (same atomic, different mass)
What is a compound
Atoms joining together by a chemical reactions
What is a mixture
two or more substances not chemically bonded
List the 4 separations techniques
Filtration, evaporation, simple distillation, fractional distillation
What is the equation for relative atomic mass Ar
Sum of (isotope mass x isotope abundance) ➗sum of isotope abundances
In what order was the atomic structure created
John dalton
JJ thomas
Rutherford
Bohr
Rutherford and others
Who discovered the plum pudding model
JJ Thomas
How and who discovered the nuclear model
Rutherford did the Alpha scattering experiment, not all particles went through meaning the plum pudding was incorrect
Who discovered shells
Bohr
What did Rutherford and others later discovered
Positively charged protons
Neutrally charged neutrons
How did dimitri Mendeleev structure the periodic table
Left gaps for undiscovered elements
In order of atomic mass
Describe the trend in group 1 as you go down
Name, reactivity, melting and boiling points, relative atomic mass
(Alkali metals)
Increase reactivity
Lower melting and boiling point
Higher relative atomic mass
