ആവർത്തന പട്ടികയുമായി ബന്ധപ്പെട്ട ചോദ്യങ്ങളാണ് ഇന്നത്തെ പാഠത്തിൽ ഉൾപ്പെടുത്തിയിട്ടുള്ളത്.
- Father of Periodic table\Periodic table was discovered by
Dmitri Mendeleev
- Father of Modern Periodic table
Moseley
- Periodic law was put forward by
Dmitri Mendeleev
- Modern Periodic law was put forward by
Moseley
- Atomic number of elements were discovered by
Moseley
- Periodic table of Mendeleev was based on increasing order of
Atomic mass
- Who classified elements based on atomic volume
Lother Meyer
- Modern Periodic table is based on increasing order of
Atomic Number
- Scientist who established measuring and weighing methods in Chemistry
Lavoisier
- Horizontal rows of elements in Periodic table
Periods
- No of periods in Periodic table
7
- Vertical column of elements in Periodic table
Groups
- No of groups in Periodic table
18
- Horizontal rows of elements in Periodic table
Periods
- Shortest period
First Period (Contains only two elements)
- Horizontal rows of elements in Periodic table
Periods
- No of elements in periodic table
118
- No of naturally occurring elements in periodic table
92
- First artificial element
Technetium (Atomic number 43)
- Last natural element in periodic table
Uranium
- Position of metals in periodic table
Left side
- Position of non-metals in periodic table
Right side
- Natural element having highest atomic weight and atomic number
Uranium (92)
- Characteristic of element in one group
No of electrons in outermost shell are same
- Element having atomic number greater than that of Uranium and do not occur in nature are called
Synthetic (Transuranic) elements
- Element having name of Earth
Tellurium
- Element having name of Moon
Selenium
- Element having name of Sun
Helium
- Element having name of an asteroid
Palladium
- Elements which are named in the honour of women
Curium, Meitnarium
- Group 1 elements are called
Alkali Metals
- Group 2 elements are called
Alkaline Earth Metals
- Elements with atomic number 57-71 are called
Lanthanides (Rare earth)
- Elements with atomic number 89-103 are called
Actinides (Radioactive rare earth)
- Elements included in 3-12 groups are called
Transition elements
- Elements other than transition elements are called
Representative elements
- Specialty of transitive elements
They all are metals and form coloured compounds
- Element does not have neutrons in an atom
Hydrogen
- Liquid transitive metal
Mercury
- Liquid metal at room temperature
Mercury
- Liquid non-metal at room temperature
Bromine
- Metal used as a thermometric fluid
Mercury
- Metal which is used in atomic clocks
Caesium
- Element used in the dials clock
Radium
- Radium and Plutonium are discovered by
Marie Curie
- Metal which shows the least expansion
Caesium
- Element having highest electronegativity
Fluorine
- Element having least electronegativity
Francium, Caesium
- Most electro positive stable element
Caesium
(To be Continued…)