Question 820

Why is the mitochondria called the powerhouse of the cell?

4 year ago
Mitesh Sharma
Mitesh Sharma

If the number of electrons in an atom is 8 and number of protons is also 8, then

(i) What is the atomic number of the atom? 

(ii) What is the charge on the atom?

4 year ago
Mitesh Sharma
Mitesh Sharma

Helium atom has an atomic mass of 4 u and two protons in its nucleus. How many neutrons does it have?

4 year ago
Mitesh Sharma
Mitesh Sharma

Name the three subatomic particles of an atom.

4 year ago
Mitesh Sharma
Mitesh Sharma

What are the canal rays? And what is its use ??

4 year ago
Mitesh Sharma
Mitesh Sharma

Number of valence electrons in Cl– ion are:

(a) 16

(b) 8

(c) 17

(d) 18

4 year ago
Mitesh Sharma
Mitesh Sharma
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