NEW
Font size
WorksheetsG10__Advanced_Module 5_Lesson 1
Total questions: 7
Worksheet time: 4mins
2.
Who suggested that the physical and chemical properties were related to the atomic number, rather than atomic mass?
Meyer
Moseley
Mendeleev
Newlands
3. What was Dmitri Mendeleev's greatest contribution to the history of the periodic table?
He arranged all of the known elements by their atomic number
He predicted the existence (and properties) of new elements
He realised that there was a pattern of reactivity which repeated every 8 elements
He identified the "law of triads" which became the groups
4.The periodic table is organized by the number of ______ in each element's nucleus
neutrons
electrons
protons
atoms
5.What property did Menedleev use to organize his first periodic table?
atomic number
atomic mass
alphabetical order
chemical properties
6.Why were there blank spaces left in Mendeleev's periodic table?
He didn't know what to put there.
Multiple elements could have fit
Undiscovered elements not yet known.
He forgot to add the elements in.
7.
In the modern periodic table elements are arranged by:
atomic mass
atomic number
valence electrons
number of isotopes
1.
Who arranged the known elements into horizontal rows of increasing atomic mass leaving gaps for as yet undiscovered elements?
Mendeleev
Newlands
Meyer
Moseley
