Atomic Symbols/Numbers
What is the symbol for Hydrogen
H
Rows going left to right are called what?
Periods
What type of elements are located on the staircase?
Metalloids
What type of electrons are used to form a Lewis Dot Structure?
Valence electrons
What does the arrow represent in a chemical equation?
Yields
What is the atomic number for Neon
10
Who created the periodic table?
Dmitri Mendeleev
What type of elements are located on the right of the table?
non-metals
How many electrons does the Lewis dot structure for Nitrogen have
5
Reactants and products
What is the total number of protons for Boron
5
Which side of the periodic table are the non-metals located on?
Right
Give 3 properties of Metals.
silver/gray, solid, luster, ductile, conductors of electricity and heat, malleable, high melting points
True or False: Elements in the same group will have the same number of electrons in their Lewis Dot Structure.
True
Balance this equation:
Mg + O2 > MgO
2Mg + O2 > 2MgO
What is the atomic mass of Sulfur?
32.1
What does the atomic radius do as you move down the column?
Increases
Give 2 properties of non-metals
brittle, low melting point, not magnetic, poor conductors, not ductile, not luster, low densities
Where do you put the first 2 electrons when bonding 2 elements together in a Lewis Dot Structure
in the middle
Law of conservation of matter
How many neutrons are in Argon?
22
Which two groups on the periodic table are the most reactive?
1 and 17
Besides metals, non metals, and metalloids; name 2 other groups (families) of elements on the table.
noble gas, alkali metal, transition metals, poor metals, actinides, lanthinides, alkali earth metals, semi metals
Draw the lewis dot structure for CO2
How many Hydrogen molecules are in this equation?
H2 + O2 > 2H2O
6