WorksheetsChapter 4 Periodic Table of elements (PL 1 and 2)
Total questions: 20
Worksheet time: 10mins
Mendeleev arranged the elements by their ________________
proton number
density
melting point
relative atomic mass
The horizontal rows on the periodic table are called
groups
families
periods
proton numbers
Each vertical column on the periodic table is called a...
group
valence electron
period
nucleon number
What is the chemical symbol for Lead?
Le
Fe
Ld
Pb
How many valance electrons does Iodine Have?
6
16
7
17
All elements in the same row have the same number of shells.
True
False
Sometimes
Elements in the same group or column have the same number ...
of valence electrons
of electron shells
of protons
nucleon number
The elements along the staircase which have metal and non-metal properties are called
metals
non metals
metalloids
noble gases
The number of neutrons in an atom can be found by
adding the number of neutrons and protons together.
adding the nucleon number and the proton number.
subtracting the proton number from the nucleon number.
subtracting the nucleon number from the proton number.
___________________ are positively charged particles located in the nucleus of an atom.
Electrons
Neutrons
Protons
Isotopes
Isotopes are atoms of the same element with different numbers of
electrons
neutrons
protons
nuclei
What are the elements in group 1 (the far left) of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
What are the elements in group 18 (the far right) of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
What are the elements in group 17 of the periodic table called?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
What are the elements in groups 3-12 of the periodic table called?
Transition metals
Non-metals
Metalloids
Metals
The model of an atom that shows electrons in circular orbits around the nucleus is called the:
Bohr Model
Lewis Dot Structure
Rutherford Model
Thomson Model
an atom or group of atoms that has gained or lost one or more electrons and is now either positively or negatively charged
isotope
ion
orbital
nucleus
Which family of elements reacts violently with water and exposure to oxygen?
alkali metals
alkaline earth metals
lanthanides
actanides
transition metals
What is the most reactive non-metal?
Fluorine
Iodine
Chlorine
Bromine
