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What's the MATTER?
Moles and more
Far from IDEAL
Atoms are exciting!!
ELECTRONS are soooo negative!
100
A state of matter when particles are spread out
What is a gas?
100
6.02 x 10^23
What is Avogadro's constant?
100
PV = nRT
What is the ideal gas equation?
100
A substance that cannot be broken down into simpler substances by a chemical reaction.
What is an element?
100
Minimum energy to remove 1 mole of electrons from 1 mole of gaseous atoms in their ground state.
What is the ionization energy?
200
When gas changes to a liquid
What is condensing?
200
Moles x molar mass = ?
What is mass?
200
Pascal (Pa)
What are the units of pressure?
200
The sub-atomic particle with negligible mass.
What is an electron?
200
Place where electrons are found in atoms.
What is an atomic orbital?
300
Matter that has no fixed shape but a fixed volume.
What is a liquid?
300
Simplest ratio of atoms
What is the empirical formula?
300
22.7 dm^3 mol^-1
What is molar volume?
300
Number of protons + number of neutrons
What is the mass number?
300
No more than two electrons can occupy the same orbital and if two electrons are in the same orbital, they will have opposite spin
What is the Pauli Exclusion Principle?
400
Something that is gained by particles as they are heated
What is kinetic energy?
400
Actual number of atoms in a molecule
What is the molecular formula?
400
Equal volumes of all gases, when measured at the same temperature and pressure, contain an equal number of particles.
What is Avogadro's law?
400
Atoms of the same element with different mass number.
What is an isotope?
400
[Ar] 3d1 4s2
What is the electron configuration of scandium?
500
The process by which particles of a substance become evenly distributed by random motion.
What is diffusion?
500

number of moles of a dissolved substance per unit solvent

What is concentration

500

Happens to volume when pressure is doubled at constant temperatur

What is halving of volume ?

500
Instrument used to measure the mass of individual atoms.
What is a mass spectrometer?
500
Because effective nuclear charge increases
Why does ionization energy increase across a period?