Metalloids

Q. Metals reflect light and are good conductors of electricity.

1. True
2. False

Q.

The elements which have some properties of metals and some properties of non-metals are called _________

Q. Give two examples for each of the following:
(a) metals
(b) non-metals
(c) metalloids

Q.

3) Statements given below are incorrect.

(iii) Metalloids are elements that have properties similar to that of metals

1. True
2. False

Q.

What are noble gases and mettaloids

Q.

Elements are mostly grouped into metals, non-metals and___.

Q. Arsenic and silicon are the examples of ______.

1. metals
2. non-metals
3. metalloids
4. alloys

Q.

Which element can be placed in the region marked by question mark?

1. Ga

2. Br

3. Si

4. I

Q. Given below is a table containing a few metals and nonmetals with exceptional properties. Fill the dark spaces by identifying X, Y and Z in the table.

1. X - Carbon (C); Y - Non-metal; Z - Lustrous
2. X - Silver (Ag); Y - Metal; Z - Ductile
3. X - Gallium (Ga); Y - Metal; Z - Lustrous
4. X - Gallium (Ga); Y - Metal; Z - Sonorous

Q.

can we say all metals are the examples of metallic solids? give exceptions

Q. Elements are mostly grouped into metals, non-metals, and ___.

Q.

Elements are mostly grouped into metals, non-metals and___ .

1. salts

2. metalloids

3. bases

4. acids

Q.

4. Name the different types of elements.