Basics of Chemistry
Chemistry studies things that do NOT change (True or false?)
False, it studies things changing
It is the first element of the periodic table
Hydrogen
The positive (+) charged particles in the center of the atom
Protons
Water's chemical formula is
H2O
It is the name of the element that has C as a symbol
Carbon
The three main states of matter are
Solid, liquid and gas
The periodic table contains elements and also molecules (True or False)
False
True
Diamond is a form of which pure element?
Carbon
The number of valence electrons Carbon has is
Four
Is an atom divisible?
Yes (in Physics) and No (in Chemistry)
It is the name of the element with the symbol Fe
Iron
It is the name of the Greek philosopher who is attributed to have had the first idea of an atom before John Dalton
Democritus
It is a metal that is liquid at room temperature and is used in thermometers
Mercury
The name of organic compounds containing only hydrogen and carbon atoms is
Hydrocarbons
What is the main idea behind conservation of mass?
Matter can neither be created nor be destroyed but can be transformed from one form to another
It is the name of the group of elements on the far right side of the periodic table
Noble gases
It is a model that states that electrons are found in a cloud of probability
Schrodinger's Model
Nuclear Bombs could contain...
Plutonium, Uranium of Hydrogen
What types of bonds are there between carbon atoms? (hint: they are three types)
Single, double and triple bonds
It is the name of the process where matter changes from solid to gas
Sublimation
Plutonium is a member of which group or category in the periodic table?
Lanthanides (rare earths could also be an acceptable answer)
Emission lines are created by ____ jumping between energy levels
electrons
It is the most abundant element in the universe
Hydrogen, making up about 75% of its elemental mass
The IUPAC name of a hydrocarbon compound consisting of a chain of five carbon atoms joined by single bonds
Pentane