Question

B) What is atomic mass? How is it represented?
C) Write the formula of the compound formed by
a) Al and Olatoms
() Mg and O atoms
() Na and O atoms
BIOLOGY
Maxmarks- 27 marks
01 Multiple Choice Question
01. The disease causing microbes are called
A) bacteria
B) pathogens
C) virus
D) protozoans
2.2.1 nm is equal to
A) 10 m​

Answer 1

Answer:

B) atomic mass is the mass of one atom of a particular element.It is represented in the form of amu. Like atomic of O atom is 16amu

C)

a)Al2O3

b)MgO

c)Na2O

01. B) pathogen

Answer 2

1. The number of protons and neutrons combined to give us the mass number of an atom. It is represented using the letter 'A. ... For example, an atom of carbon has 6 protons and 6 neutrons. Thus, its mass number is 12. While the number of protons remains the same in all atoms of an element, the number of neutrons can vary.

2. aluminium oxide

magnesium oxide

sodium oxide

3. pathogens

4. 10 power -9

its the answer....