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17 questions
Which of the following element is an example of Halogen
Sodium
Magnesium
Fluorine
Carbon
Which of the following is an inert / Noble gas?
Hydrogen
Helium
Oxygen
Carbon dioxide
------ are poor conductors of heat and electricity
Transition metals
All metals
Non metals
Copper
Which of the following element is a member of Alkaline earth metals?
Lithium
Iron
Calcium
Boron
Noble gases are inert because
They are highly reactive
They are unreactive
They are noble
They have 8 electrons in their outer most energy level
The vertical columns in the periodic table are known as
Groups
Elements
No name
Periods
A grouping of elements based on similar chemical properties, arranged by columns in the periodic table; also known as a group
family
period
row
isotope
A row on the Periodic Table of Elements
family
period
row
isotope
Which halogen is found in period 4?
Krypton (Kr)
Xenon (Xe)
Bromine (Br)
Iodine (I)
a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge
proton
neutron
electron
matter
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