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प्रश्न
An element belongs to the third period and Group IIIA (13) of the periodic table. State: if it is a metal or non-metal?
उत्तर
It's a Metal.
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संबंधित प्रश्न
The atomic numbers of three elements A, B and C are 12, 18 and 20 respectively. State, giving reason, which two elements will show similar properties.
An element 'X' belong to 3rd period and group 13 of the Modern Periodic Table.
(a) Determine the valence electrons and the valency of 'X'.
(b) Molecular formula of the compound formed when 'X' reacts with an element 'Y' (atomic number = 8).
(c) Write the name and formula of the compound formed when 'X' combines with chlorine
How do the atomic size and metallic character of elements vary as we move :-
(a) down a group and
(b) from left to right in a period
Na, Mg and Al are the elements of the same period of Modern Periodic Table having, one, two and three valence electrons respectively. Which of these elements (i) has the largest atomic radius, (ii) is least reactive? Justify your answer stating reason for each case.
Why sodium element of group 1 and chlorine element of group 17 both have valency 1?
name the elements in period 1.
Four elements P, Q, R and S belong to the third period of the Modern Periodic Table and have respectively 1, 3, 5 and 7 electrons in their outermost shells. Write the electronic configurations of Q and R and determine their valences. Write the molecular formula of the compound formed when P and S combine.
K, Pb, Ca, Zn (In the increasing order of the reactivity)
What is meant by a Group in the Periodic Table?
State the property trends in general of elements on moving down in a group of the periodic table.
