Flashcards
0. Bridging Course
Cards in this deck (43)
- 1What is the relative mass and relative charge of a proton?•Relative mass = 1
•Relative charge = +1 - 2What is the relative mass and relative charge of a neutron?•Relative mass = 1
•Relative charge = 0 - 3What is the relative mass and relative charge of an electron?•Relative mass = Almost 0
•Relative charge = -1 - 4What is the atomic number?Number of protons (equal to electrons)
- 5What is the mass number?Number of protons and neutrons added together
- 6Why does an atom have no overall charge?Number of protons is equivalent to number of electrons
- 7What is the difference between an ion and an atom?An ion has a different number of protons and electrons and therefore has a charge
- 8What is a cation?Positively charged ion
- 9What is an anion?Negatively charged ion
- 10What are isotopes?Element with the same number of protons but different number of neutrons
- 11Do isotopes of the same element have the same or different chemical properties?Same because isotopes have the same electron arrangement and so they react in the same way because things don't react with protons or neutrons
- 12Which properties of isotopes may be different?Density
Melting point
Boiling point - 13Which of the 3 types of sub-atomic particles would be deflected the most if passing through a vacuum between charged metal plates?Electrons will be deflected the most as they have the smallest relative mass and will be attracted to the positively charged plates
- 14Which of the 3 types of sub-atomic particle has the greatest penetrating power through a sheet of metal?Neutrons because they have no charge
- 15Definition of relative atomic mass (Ar)?The average mass of an atom compared to 1/12 of the mass of an atom of carbon-12
- 16Definition of relative molecular mass (Mr)?The average mass of a molecule compared to 1/12 of the mass of an atom of carbon-12
- 17What is a monatomic substance?Made of a single atom (E.g: noble gases)
- 18What is a diatomic substance?Made of 2 atoms joined together
- 19What is a polyatomic substance?Made of 3+ atoms joined together
- 20What does the molecular formula show?Number of each type of atom in a molecule
- 21What does the empirical formula show?The simplest whole number ratio of atoms in a formula
- 22What must we make sure when balancing an equation?You have the same number of atoms per element on each side of the equation
- 23What does aqueous mean?Dissolved in water
- 24What are spectator ions?Ions that do not react in an equation
- 25What groups are in the S-Block?1 & 2
- 26What groups are in the D-Block?Transition metals
- 27What groups are in the P-Block?3 & 4 & 5 & 6 & 7 & 8
- 28What is a polyatomic/complex ion?Ions that contain more than one type of atom
- 29What are the most common polyatomic ions?•Hydroxide
•Nitrate
•Hydrogen sulfate
•Hydrogen carbonate
•Sulfate
•Carbonate
•Phosphate
•Ammonium - 30What is the formula with the charge of hydroxide?
- 31What is the formula with the charge of nitrate?
- 32What is the formula with the charge of hydrogen sulfate?
- 33What is the formula with the charge of hydrogen carbonate?Enter text here...
- 34What is the formula with the charge of sulfate?Enter text here...
- 35What is the formula with the charge of carbonate?Enter text here...
- 36What is the formula with the charge of phosphate?Enter text here...
- 37What is the formula with the charge of ammonium?
- 38What is the formula of hydrochloric acid?HCl
- 39What is the formula of sulphuric acid?
- 40What is the formula of nitric acid?
- 41What is the formula of phosphoric acid?
- 424 steps to calculating the empirical formula?•Divide mass or percentage by Ar
•Divide all answers by smallest value
•Find simplest whole number ratio
•Write the empirical formula - 43How do you calculate the molecular formula from the empirical formula?•Work out Mr of empirical formula
•Use equation to work out molecular formula
(Mr / Empirical mass) x empirical formula
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- AS level AS Chemistry (Bridging Course) Flashcards on 0. Bridging Course, created by Tania Parvaiz on 19/09/2016.
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- Tania Parvaiz
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