Chemical Symbols
The chemical symbol for Sodium
Na
Family 3-12 on the periodic table
Transition metals
An ionic bond is formed with a _______ and a ______.
Metal and non-metal
What are the two types of changes in chemistry?
chemical and physical
atom
The chemical symbol for Flourine
What number family are noble gases in?
18
sodium chloride (table salt)
Ice in the freezer is an example of a _______ change.
physical
The atomic number is equal to the number of _______ in the nucleus.
protons
What element does the chemical symbol Ca represent
calcium
The first two families on the periodic table
Alkali metals and alkali earth metals
What type of bond is the compound Cs3P?
ionic
What is one way to tell a chemical change has occured?
heat produced, light produced, sound produced, smoke or precipitate may be produced, there may be a colour change.
The atomic mass is equal to the atomic ______ in an atom.
atomic
What is the chemical symbol for Silicon
Si
Elements that are poor conductive, are usually gases or brittle solids, and non-malleable.
Non-metals
What kind of compound is PCl3?
covalent
Fireworks are an example of a ________ change.
chemical
The number of protons is also equal to the number of __________.
electrons
What element is represented by the chemical symbol Pb
Lean
Metals that may conduct electricity, are poor conductors of heat, and are non-malleable/non-ductile.
Metalloids
What is the compound name for NH3?
ammonium
What kind of change has occured when an apple ripens and turns brown?
chemical
Electrons in the outermost shell of the atom are called... Bonus points for saying what they are responsible for.
valence - responsible for chemical bonding