Metallic and Non Metallic Character

Q. Arrange the following elements in the increasing order of their metallic character.

1. Lithium
2. Sodium
3. Potassium
4. Rubidium
5. Caesium

Q.

What are the four major categories in which the elements are divided?

Q.

Which one of the following is the most electropositive element?

1. Sodium

2. Magnesium

3. Aluminium

4. Silicon

Q. Analyse the table given below and choose the correct option regarding metallic character of X and Y.

Element	Number of protons	Number of neutrons
X	11	12
Y	12	14

1. Metallic character of X is equal to that of Y.
2. Metallic character of Y is greater than that of X.
3. Metallic character of X is greater than that of Y.

Q. Metalloids are elements that have properties of metals.

1. False
2. True

Q. Out of the given options, the element with the lowest metallic character is:

1. Si
2. Cl
3. Al
4. Na

Q.

Identify the property that hydrogen (H) and alkali metals (M) have in common.

1. Hydrogen forms $H^{+}$ and alkali metal forms a $M^{-}$ ion.

2. Both can combine with halogens to form halides (HX and MX).

3. Both have valency 2.

4. Both of them have low ionisation energy.

Q. In the periodic table, non-metals are present at the .

1. lower left side
2. lower right side
3. upper right side

Q. Arrange the following elements in the order of increasing metallic character.

1. Beryllium
2. Barium
3. Strontium
4. Calcium
5. Magnesium

Q. Which of the following elements has the greatest tendency to lose electrons?

1. Fluorine
2. Sulphur
3. Iron
4. Beryllium

Q. Which of the following elements has the greatest tendency to lose electrons?

1. Fluorine
2. Sulphur
3. Iron
4. Beryllium