Class 10 | Periodic Classification Of Elements

Flash Card

Which is the most electropositive element in period 2?

1/50

Valency of the elements in the halagen family is............ .

2/50

Phosphorus is placed in......

3/50

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......... .

4/50

Newlands Law of Octaves is applicable up to

5/50

Which pair of atomic numbers represents elements in the same group?

6/50

Which of the following is the lightest inert gas?

7/50

On moving from left to right in a periodic table, the size of the atom............. .

8/50

Dobereiner's traids are the group of 3 elements with ............. .

9/50

According to Mendeleev's periodic law, properties of elements are periodic function of their......... .

10/50

For elements of period 2, ............ is the outermost shell occupied by electrons.

11/50

Among the following,............ is the most electronegative element.

12/50

Halogen which is liquid at room temperature is ............ .

13/50

In the modern periodic table, the elements are arranged in accordance with their .......... .

14/50

Valency of oxygen is........ .

15/50

Calcium, strontium and ............. form a Dobereiner's traid.

16/50

Identify the element which does NOT belong to period 3.

17/50

CORRECT increasing order of atomic radius in alkaline earth metal is............. .

18/50

The maximum electron capacity of N shell is............. .

19/50

According to Mendeleev's prediction, what is the nature of the oxide formed by the element eka-aluminium?

20/50

The formula of compound formed in the reaction between calcium and fluorine is:

21/50

At the time of Mendeleev .............. elements were known.

22/50

The lanthanide and actinide series at the bottom form the ........... block.

23/50

Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in......... .

24/50

In modern periodic table, the number of groups and periods are ......... and ........... respectively.

25/50

Lithium (Li), ............. and potassium(K) is Dobereiner's traid.

26/50

The element eka-silicon in Mendeleev's periodic table is known as .............. in the modern periodic table.

27/50

Which of the following is CORRECT?

28/50

The correct decreasing order of atomic radius is:

29/50

Which of the following statements is CORRECT regarding to Newlands' octaves?

30/50

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 ................. .

31/50

In which block of the modern periodic table are the nonmetals found?

32/50

The number of electrons in the outermost shell of alkali metals is......... .

33/50

The molecular formula of gallium oxide is ............ .

34/50

.................. is the distance between the nucleus of the atom and its outermost shell.

35/50

The metallic character of elements............. in a group from top to bottom.

36/50

Electronic configuration of element X is 2, 8, 2. It belongs to............ in the modern periodic table.

37/50

The elements of group 17 are called........... .

38/50

........... is the first element of group 16.

39/50

The d-block elements are called as ............ elements.

40/50

The groups 1 and 2 constitute the ........... block.

41/50

Which pair of elements will have similar properties?

42/50

Valency of elements............. in a period from left to right.

43/50

Which among the following has the largest atomic radius?

44/50

Dobereiner laid down the ............ rule.

45/50

Which of the following is a metalloid?

46/50

The maximum electron capacity of L shell is............. .

47/50

Atomic radius is expressed in the unit............. .

48/50

Which among the following elements would lose an electron easily?

49/50

Which of the following element has valency equal to 0?

50/50
Periodic Classification of Elementss

Class 10 | Periodic Classification Of Elements

1 / 50

The molecular formula of gallium oxide is ………… .

2 / 50

Which among the following has the largest atomic radius?

3 / 50

The correct decreasing order of atomic radius is:

4 / 50

Which is the most electropositive element in period 2?

5 / 50

Valency of the elements in the halagen family is………… .

6 / 50

CORRECT increasing order of atomic radius in alkaline earth metal is…………. .

7 / 50

Dobereiner’s traids are the group of 3 elements with …………. .

8 / 50

On moving from left to right in a periodic table, the size of the atom…………. .

9 / 50

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 …………….. .

10 / 50

In which block of the modern periodic table are the nonmetals found?

11 / 50

Among the following,………… is the most electronegative element.

12 / 50

The groups 1 and 2 constitute the ……….. block.

13 / 50

The number of electrons in the outermost shell of alkali metals is……… .

14 / 50

Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in……… .

15 / 50

Halogen which is liquid at room temperature is ………… .

16 / 50

Which pair of elements will have similar properties?

17 / 50

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……… .

18 / 50

Lithium (Li), …………. and potassium(K) is Dobereiner’s traid.

19 / 50

According to Mendeleev’s prediction, what is the nature of the oxide formed by the element eka-aluminium?

20 / 50

Phosphorus is placed in……

21 / 50

The elements of group 17 are called……….. .

22 / 50

For elements of period 2, ………… is the outermost shell occupied by electrons.

23 / 50

Which among the following elements would lose an electron easily?

24 / 50

In the modern periodic table, the elements are arranged in accordance with their ………. .

25 / 50

Atomic radius is expressed in the unit…………. .

26 / 50

Newlands Law of Octaves is applicable up to

27 / 50

Electronic configuration of element X is 2, 8, 2. It belongs to………… in the modern periodic table.

28 / 50

The metallic character of elements…………. in a group from top to bottom.

29 / 50

At the time of Mendeleev ………….. elements were known.

30 / 50

Which of the following element has valency equal to 0?

31 / 50

Calcium, strontium and …………. form a Dobereiner’s traid.

32 / 50

……….. is the first element of group 16.

33 / 50

The formula of compound formed in the reaction between calcium and fluorine is:

34 / 50

Valency of oxygen is…….. .

35 / 50

The d-block elements are called as ………… elements.

36 / 50

The maximum electron capacity of L shell is…………. .

37 / 50

Dobereiner laid down the ………… rule.

38 / 50

Valency of elements…………. in a period from left to right.

39 / 50

Which of the following is CORRECT?

40 / 50

Which pair of atomic numbers represents elements in the same group?

41 / 50

The maximum electron capacity of N shell is…………. .

42 / 50

In modern periodic table, the number of groups and periods are ……… and ……….. respectively.

43 / 50

Which of the following is the lightest inert gas?

44 / 50

According to Mendeleev’s periodic law, properties of elements are periodic function of their……… .

45 / 50

Which of the following statements is CORRECT regarding to Newlands’ octaves?

46 / 50

Identify the element which does NOT belong to period 3.

47 / 50

Which of the following is a metalloid?

48 / 50

The lanthanide and actinide series at the bottom form the ……….. block.

49 / 50

The element eka-silicon in Mendeleev’s periodic table is known as ………….. in the modern periodic table.

50 / 50

……………… is the distance between the nucleus of the atom and its outermost shell.

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