Show:
people
table questions
atomic masses
knowledge
100
mendeleev
who created the first periodic table?
100
18
How many rows does the periodic table have?
100
79
What is golds atomic mass
100
helps identify elements and characteristics of them
how is the periodic table a help to scientists?
200
Maria and Ivan
who was mendeleev's father and mother?
200
7
how many columns does the table have?
200
5
What is borons atomic mass
200
name given to elements 104-109
what does IUPAC stand for?
300
Elizabeth
what was one of Dmitri's sisters name?
300
hafnium
which element is named after Copenhagen?
300
2
What is heliums atomic number
300
technetium
What is the first element to be made artificially?
400
John Newlands
who arranged the elements into Octaves?
400
118
DAILY DOUBLE:)what is the highest atomic mass element on pg 144-145?
400
118
What is ununoctium's atomic mass
400
hydrogen
What is the lightest element
500
Feozva Leshcheva
who did mendeleev marry?
500
The arrangement of the elements, or of groups of elements in the order of their atomic weights corresponds to their so-called valences as well as, to some extent, to their distinctive chemical properties, as is apparent among other series in that of lithium, beryllium, barium, carbon, nitrogen, oxygen and iron [sic. The printed speech in J. Chem. Soc. says barium and iron. Obviously boron (B) and fluorine (F) are meant. Mendeleev's 1869 paper lists the symbols B and F rather than the names of the elements. CJG]
What is mendeleev's third periodic principle?
500
yes
is there an element named seaborgium
500
gets heavier
what happens to the elements from the left of the periodic table to the right?