chemistry paper 1

Vocabulary flashcards for chemistry exam review.

Periodic Table

What is a list of all the elements which are known to exist?

Element

What is a single type of atom?

Atom

What is Greek for uncuttable, smallest thing possible?

Compound

What is two or more elements that are chemically bonded together?

Nucleus

What is the center of an atom containing protons and neutrons?

Protons

What are particles in the nucleus with a mass of one and a charge of plus one?

Neutrons

What are particles in the nucleus with a mass of one and a charge of zero?

Electrons

What are particles in the outer shells with a mass of one two thousandths and a charge of minus one?

Atomic Number

What tells us the number of protons and electrons in an atom?

Mass Number

What is the number of protons plus the number of neutrons?

Distillation

What is separating things off by boiling points?

Evaporation

What is removing the liquid and leaving solids that have been dissolved in the liquid?

Filtration

What is when large particles of solid stay in the filter paper and the liquid drips through?

Fractional Distillation

What is taking things off at different boiling points?

Plum Pudding Model

What is a model where there was a large cloud of positive charge with negative electrons dotted throughout?

Groups

What goes down the periodic table?

Periods

What goes across the periodic table?

Alkali Metals

What is group number one, also known as?

Alkaline Earth Metals

What is group number two, also known as?

Halogens

What is group seven, also known as?

Noble Gases

What is group eight, also known as?

Newlands

What was the first attempt at a periodic table by?

Mendeleev

Who arranged things by mass, but he left gaps in his periodic table?

Halogens

What are diatomic molecules?

Dullness

What is a metal oxide, which if you've seen these in school, when it was cut, it was shiny, but it still started to dull?

Evaporating

What is from a liquid to a gas?

Condensing

What is from gas to liquid?

Freezing

What is from a liquid to a solid?

Ionic Bonding

What is the transfer of electrons from a metal to a nonmetal?

Covalent Bonding

What is the sharing of electrons between two nonmetals?

Metals

What are positive atoms in a sea of delocalized electrons?

Alloy

What is positive ions, delocalized electrons, with something else in there as well?

Mole

What is a unit for the amount of a substance?

Oxidation

What is loss of electrons

Reduction

What is gain of electrons

Anode

What is a positive electrode

Cathode

What is a negative electrode

Making a Pure Salt

What is mixing sulfuric acid and copper oxide to make copper sulfate and water?

Acidity

What is hydrogen ions?

Alkalinity

What is Hydroxide ions?

Strong Acids

What Fully dissociate into hydrogen and other ions?

Weak Acid

What Only partially dissociates?

Cryolite

What adds to reduce the melting point of molten aluminum oxide?

Endothermic Reaction

What feels