Question
Which factor(s) led scientists towards the
classification of elements? (i) Different methods of synthesis of elements (ii) Different source of elements (iii) Different properties of elements   ÂSolution
Moseley's Modern periodic law According to Moseley's Modern periodic law, Elements are Arranged in a Tabular form based on their Atomic Numbers. it states that the Chemical and Physical Properties of Elements is a Periodic Function of their Atomic Number. Newland Newland arranged the Elements in the Order of Increasing Atomic Masses and found that the Properties of Every 8th Element are Similar to that of the 1st Element, Just like musical notes. Mendeleev Mendeleev arranged the Elements in the Increasing Order of their Atomic Mass. Mendeleev's Periodic table is based on the Chemical Properties of the Elements. It contains 7 Periods(horizontal rows) and 8 Groups (vertical columns). Share on Whatsapp
In the given letter – cluster pairs, the first letter – cluster is related to the second letter – cluster following a certain logic. Study the giv...
Which of the following letter-clusters will replace the question mark (?) in the given series?
FUV, IXW, LAX, ?, RGZ
In a certain code language, ‘ASIA’ is written as ‘ZHRZ’ and ‘IRELAND’ is written as ‘RIVOZMW’. How will ‘NORWAY’ be written in that ...
How many triangles are there in the given figure?
Read the given statements and conclusions carefully. Decide which of the given conclusions is are true based on the statements.
Statements:
...Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
Six people are sitting around a circular table facing the centre. P sits second to the left of Q. S is an immediate neighbour of both Q and U. T sits se...
A certain number of people are sitting in a row, facing north. Only two people sit between K and L. L sits third to the right of M. Only three people si...
Choose the next number in the series.
20, 43, 66, 89, 112, ?
Statements:
All buses are cars.
No jeep is a car.
Conclusions:
I. No car is a jeep.
II. No jeep is a bus.
Relevant for Exams:
