Periodic Table
What is the smallest element in the periodic table? (HINT: find the smallest atomic number)
Hydrogen
Do metals have luster?
Yes, they are shinny!
Which element has a bigger Atomic Radius?
Ba or Fr
Fr / Francium
How many atoms are in the molecule?
Ca2
2 atoms
Calculate the molar mass:
Fe
55.85
What is the name of the last column (group) in the Periodic Table? (HINT: Look at your colored periodic table)
Noble Gases
Where are metals located in the periodic table?
a) left
b) middle (staircase)
c) right
Which element has a higher electronegativity?
Al or Mg
Al / Aluminum
How many atoms are in the molecule?
BeN3O4
8 atoms
Calculate the molar mass:
Mg2(C1O3)2
168.64
What is the name of the group (family) that has 7 valence electrons? (HINT: Look at your colored periodic table)
The Halogen Family
What type of element is Hg?
metal
Which element has a higher reactivity?
Fe or Ru
Ru / Ruthenium
How many atoms are in the molecule?
2H2O
6 atoms
2What is Avogadro's number?
(HINT: look at your mole notes!!!)
6.022 x 1023 particles
What do elements in the same group have in common?
The same number of valence electrons
What type of element is At?
metalloid
Which element has a bigger Atomic Radius?
Mg or Sr
Sr / Stronium
How many atoms are in the molecule?
Fe(Cl2O)2
7 atoms
How many moles are there in 11.0 grams of Na?
Molar mass of Na: 22.99 g
0.478 moles of Na
What is the name of the columns on the periodic table?
Groups
What type of element is Xe?
nonmetal
Which element has a lower reactivity?
C or O
C / Carbon
How many atoms are in the molecule?
Br2(MgN3S4)2
18 atoms
How many grams are there in 0.80 moles of CuCl2?
Molar mass of CuCl2: 134.45 g
107.56 grams of CuCl2