Periodic Table Flashcards
Where are the metals found on the periodic table?
Left of the “staircase line”
Where are the metalloids found on the periodic table?
Along the “staircase line”
Where are the non-metals found on the periodic table?
Right of the “staircase line”
What are some properties of metals?
Metallic luster, malleable, ductile, conducts heat and electricity
What are some properties of non-metals?
Usually in gas form, dull, don’t conduct heat or electricity
What are some properties of metalloids?
Is like a mixture of non-metals and metals’ properties: semi conductor, acts as both an insulator AND a conductor
Name a few examples of metals.
Gold, Silver and Iron
Name a few examples of metalloids.
Silicone and Boron
Name a few examples of non-metals.
Hydrogen and Carbon
Name a few of the chemical groups in the period table, as well as some properties for each
Alkali Metals; low densities, very soft Alkaline Earth Metals; very reactive, shiny Halogens; Highly reactive Noble Gases; Odourless, colourless Hydrogen; Least dense known gas
What are families? In regards to the periodic table.
Families are elements with similar physical properties
Vertical Columns
What are groups? In regards to the periodic table.
Horizontal rows in the table
What is a chemical symbol?
An abbreviation of a chem. element name, it’s represented by one or two letters.
Give some examples of chemical symbols.
Oxygen is O, Argon is Ar, Carbon is C, Helium is He
What are the 3 subatomic particles?
Protons, neutrons and electrons
Where are protons located? And what are their charges?
In the nucleus w/ positive charges
Where are neutrons located? And what are their charges?
In the nucleus w/ neutral charges
Where are electrons located? And what are their charges?
Orbiting the nucleus w/ negative charges
What is an atomic number?
The atomic number indicates how many protons are in the nucleus of an atom.
The # of protons also = the # of electrons EX: Hydrogen’s atomic # is 1, so it has 1 electron and 1 proton
What are “atomic mass units” for?
Indicating mass on an atomic scale
Protons and neutrons both have a mass of 1 amu while the mass of electrons are even smaller
How do you get the # of neutrons in an atom if you have mass # and atomic #?
of neutrons = mass # - atomic #
