Flash Card
Among the following,............ is the most electronegative element.
Lithium (Li), ............. and potassium(K) is Dobereiner's traid.
Halogen which is liquid at room temperature is ............ .
Dobereiner's traids are the group of 3 elements with ............. .
Valency of oxygen is........ .
In the modern periodic table, the elements are arranged in accordance with their .......... .
Which of the following is the lightest inert gas?
Newlands Law of Octaves is applicable up to
The metallic character of elements............. in a group from top to bottom.
The molecular formula of gallium oxide is ............ .
At the time of Mendeleev .............. elements were known.
Which is the most electropositive element in period 2?
Phosphorus is placed in......
X and Y are two elements having similar properties which obey Newlands's Law of Octaves. The minimum number of elements in between X and Y is ................. .
The number of electrons in the outermost shell of alkali metals is......... .
The maximum electron capacity of N shell is............. .
Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in......... .
Identify the element which does NOT belong to period 3.
Calcium, strontium and ............. form a Dobereiner's traid.
The lanthanide and actinide series at the bottom form the ........... block.
The groups 1 and 2 constitute the ........... block.
Which pair of elements will have similar properties?
Electronic configuration of element X is 2, 8, 2. It belongs to............ in the modern periodic table.
According to Mendeleev's prediction, what is the nature of the oxide formed by the element eka-aluminium?
Valency of the elements in the halagen family is............ .
The elements of group 17 are called........... .
Which pair of atomic numbers represents elements in the same group?
Atomic radius is expressed in the unit............. .
Which of the following element has valency equal to 0?
CORRECT increasing order of atomic radius in alkaline earth metal is............. .
According to Mendeleev's periodic law, properties of elements are periodic function of their......... .
For elements of period 2, ............ is the outermost shell occupied by electrons.
Which among the following elements would lose an electron easily?
In modern periodic table, the number of groups and periods are ......... and ........... respectively.
........... is the first element of group 16.
Dobereiner laid down the ............ rule.
Which of the following statements is CORRECT regarding to Newlands' octaves?
A student was asked to select two elements in a periodic table. He selects neon and argon. In both these elements, the number of electrons in the outermost shell is......... .
The maximum electron capacity of L shell is............. .
The correct decreasing order of atomic radius is:
Which of the following is a metalloid?
The element eka-silicon in Mendeleev's periodic table is known as .............. in the modern periodic table.
Which among the following has the largest atomic radius?
The formula of compound formed in the reaction between calcium and fluorine is:
.................. is the distance between the nucleus of the atom and its outermost shell.
On moving from left to right in a periodic table, the size of the atom............. .
Which of the following is CORRECT?
The d-block elements are called as ............ elements.
Valency of elements............. in a period from left to right.
In which block of the modern periodic table are the nonmetals found?
