Year 10 Mock Flashcards
(45 cards)
What is an isotope
An isotope is an element with Sam’s number of protons but different numbers of neutrons
What’s the reaction of gas to water
Condensing
Liquid to gas
Evaporation
Solid to liquid
Melting
Liquid to solid
Freezing
Order of history of atoms individuals and what did they do
Dalton small ball , jj Thompson plumb pudding, Rutherford Geiger and marsdon gold foil experiment, Bohr electron shells.
Relative mass of proton neutron and electron
Proton 1 neutron 1 electron 0.0005
Relative charge of proton neutron and electron
Proton = 1 neutron = 0 electron = - 1
What’s a molecule
Two or more atoms
What’s the mass number
Bigger number
What’s the atomic number
Smaller number
What does mass number represent
Total number of protons and neutrons
What does atomic number represent
Number of protons
How to find number of protons
Atomic number
How to find number of neutrons
Mass number - atomic number
How to find out electrons
In normal uncharged atom electron is same as atomic number however charge affects number of electrons. E.g x- means that there’s an extra electron
What’s an isotope
Isotopes are different forms of same element with different number of proton but different numbers of electrons
Who created first periodic table
Dimitri Mendeleev in 1869
Why did dimitri include gaps
As he predicted there would be more elements
What does group number = in terms of electron’s on outer shell
Group number = number of electrons on outer shell
How to find number of shells on periodic table
From period the elements in
How does ionic bonding form
Loses an atom from one element and gives to other element to fill outer shell
Does this equation balance na4 + mg +
No
Does this equation balance Na1 + cl-
Yes
