RANDOM
Ernest Rutherford
What is the specific name of the 1A group elements?
Alkali metals
How the effective nuclear charge change across a period?
Increasing
Which metal has the greater metallic bond strength among: 11Na, 12Mg and 13Al?
Aluminium
Which element in the periodic table has the smallest atomic radius?
Helium
How many elements are present in today's periodic table?
118
Which element in periodic table has the highest Electron Affinity?
Chlorine
State how metals conduct electricity?
by delocalized/free (mobile) electrons.
Used for delivering precise volumes of liquid, particularly in titrations.
Burette
How many B groups present in periodic table?
10
Which group of elements has the highest metallic character?
Alkali metals/1A
Which type of interaction holds hydrogen and oxygen in water molecule?
Intramolecular forces/Covalent Bonding
Which element in the periodic table has the highest electronegativity?
Fluorine
Which scientist arranged the periodic table according to increasing atomic number?
(Henry)Moseley
What is the term used for species that have same number of electrons and same electron configurations?
Isoelectronic
What type of interaction allows salt to dissolve in water?
Intermolecular Forces
What is the term used for same energy orbitals?
Degenerate Orbitals
What is the position of the element “X” in the periodic table, whose 4+ charged ion has the same electron configuration as 18Ar?
4th period 4B group
Which element in 7A group is liquid at room temperature?
Bromine
What type of interaction is responsible for holding water molecules together in liquid water?
Intermolecular forces