The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:

(a) P
(b) Q
(c) R
(d) S

Open in App

Solution

(c) R.
R (Si) is a metalloid since its atomic number is 14 and it has 4 valence electrons.

Suggest Corrections

Similar questions

Q. The atomic numbers of four elements

P, Q, R a n d S

are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:

There are four elements P, Q, R and S having atomic numbers of 4, 18, 10 and 16 respectively. The element which can exhibit covalency as well as electrovalency will be :

(a) P

(b) Q

(d) S

Q. The atomic numbers of four elements P, Q, R and S are 6, 10, 12 and 17 respectively. Which two elements can combine to form a covalent compound?
(a) P and R
(b) Q and S
(c) P and S
(d) R and S

The atomic number of four elements P, Q, R and S are 6, 10, 12 and 17 respectively. Which two elements can combine to form a covalent compound?
(a) P and R (b) Q and S (c) P and S (d) R and S

Q. The refractive indices of four substance P, Q, R and S are 1.50, 1.36, 1.77 and 1.31 respectively. The speed of light is the maximum in the substance:

(a) P
(b) Q
(c) R
(d) S

Join BYJU'S Learning Program

The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is: (a) P (b) Q (c) R (d) S

(c) R. R (Si) is a metalloid since its atomic number is 14 and it has 4 valence electrons.

The atomic numbers of four elements P, Q, R and S are 6, 8, 14 and 16 respectively. Out of these, the element known as metalloid is:

(a) P
(b) Q
(c) R
(d) S

(c) R.
R (Si) is a metalloid since its atomic number is 14 and it has 4 valence electrons.