History
Daily Double!
1) What property was the first periodic table arranged by?
2) What property is the modern periodic table arranged by?
1) atomic mass
2) atomic number
DAILY DOUBLE!
1) What are the vertical columns of the table?
2) How many are there?
1) groups
2) 18
DAILY DOUBLE!
1) What are the most reactive metals on the table?
2) What group # are they in?
1) Alkali metals
2) group #1
What element has the largest atomic radius?
Francium (Fr)
What are the 2 liquids at room temperature on the table?
Mercury (Hg)
Bromine (Br)
Who made the first periodic table?
Mendeleev
1) What are the horizontal rows on the table?
2) How many are there?
1) periods
2) 7
DAILY DOUBLE!
1) What are the most reactive nonmetals?
2) What group # are they found in?
1) halogens
2) group #17
DAILY DOUBLE!
1) What element has the highest ionization energy?
2) Ionization energy is the energy required to ___.
1) helium (He)
2) remove an electron
What group has elements in all 3 phases (solid, liquid, and gas) at room temperature?
halogens
Who created modern periodic law?
Moseley
What block includes groups 3 - 12 ?
d block
What period are most of the radioactive and man-made elements found in?
7
How many valence electrons in...
1) tin (Sn)?
2) zinc (Zn)?
1) 4
2) 2
DAILY DOUBLE!
1) What happens to the hardness, density, luster, and melting point of metals as you go to the right towards the staircase?
2) What metal has the lowest melting point?
1) they all increase
2) mercury (Hg)
Periodic Law states:
"When elements are arranged by increasing __ __, there is a periodic __ in their physical and chemical __."
number
pattern
properties
How is hydrogen different from other group 1 elements?
it is a gas (not a metal)
DAILY DOUBLE!
1) what are the elements found on the staircase?
2) what is a nickname for them? (hint: computers)
1) metalloids
2) semiconductors
DAILY DOUBLE!
1) What element has the highest electronegativity?
2) Electronegativity is an element's ability to ____.
1) fluorine (F)
2) attract electrons
What are the 7 diatoms on the table?
H, N, F, O, I, Cl, Br
DAILY DOUBLE!
What are 2 groups/types of elements that were not on the first periodic table?
1) noble gases
2) inner transition metals
How is helium different from other group 18 elements?
It only has 2 valence electrons (not 8)
DAILY DOUBLE!
1) What is another name for "groups?"
2) What is another name for "periods?"
(the answer is NOT "rows" or "columns")
1) families
2) series
What ionic charge do the following elements take on as ions?
1) calcium (Ca)
2) nitrogen (N)
1) Ca+2
2) N-3
What are the 11 gasses at room temperature on the table?
H, N, O, F, Cl, He, Ne, Ar, Kr, Xe, Rn