No. of questions - 27
Time - 15 min
1.
How many periods are there in modern periodic table?
2.
How many horizontal rows were there in Mendeleev's periodic classification?
3.
Who showed that the atomic number is more fundamental property of an element than it’s atomic mass?
4.
What is/are the drawbacks of Mendeleev's periodic table?
5.
The noble gases were placed in group of Mendeleev's classification?
6.
Mendeleev's periodic law states that:
7.
Lothar Mayer curve was plotted between
8.
How many naturally occurring elements are there in periodic table?
9.
The number of lanthanoids and actinoid respectively present in the sixth and seventh periods are:
10.
How many groups are there in modern periodic table?
11.
The elements having similar chemical properties are placed in ?
12.
In Modern Periodic Table, Henry Moseley observed regularities in the characteristic spectra.
13.
Which of the following period of the long form of Modern periodic table contains Actinoid?
14.
Who gave the idea for the first time to classify elements as per their physical and chemical properties?
15.
Which shows merit of Mendeleev’s periodic table?
16.
The number of element present in first period of Modern periodic table is:
17.
"Modern Periodic Law" is the modification of
18.
The horizontal rows in modern periodic table are called
19.
Which of the following period of Modern periodic table contain lanthanoids?
20.
Newland's law of octaves seemed to be true only for elements upto .
21.
According to Modern Periodic Law:
22.
How many elements were placed in VIII group of Mendelev’s periodic table ?
23.
Which shows the demerit of Mendeleev’s periodic table?
24.
The number of elements present in the 2nd , 3rd , 4th , 5th and 6th periods respectively are:
25.
According to Dobereiner, group of three element is known as
26.
Which was the incomplete period in the long form of the Modern period table?
27.
In which of the following, the elements having similar outer electronic configurations are arranged/placed?
