Atoms
can be grouped into which of the following larger structures?
a) anions
b) molecules
c)
cations
d) ions
Who started the
arrangement of elements in order of increasing atomic mass in the periodic
table?
a) John Newland
b) Jaffrey
Moseley
c) Dmitri Mendeleev
d) Neil Bohr
Dmitri
Mendeleev was………scientist.
a) English
b) Dutch
c) Polish
d) Russian
When Dmitri Mendeleev started the arrangement of element in order of increasing atomic mass in the periodic table?
a) 1813
b) 1869
c) 1935
d) 1969
Elements:
Any substance that cannot be decomposed into simpler substances by ordinary chemical processes.
The matter consists of same types of atoms called……..
a) compounds
b) molecules
c) element
