Question
An atom contains 2 protons, 2 electrons and 3 neutrons. State its atomic number and atomic mass number.
✓
Answer
Atomic number: 2, Atomic mass number: 5.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
See Fig. In terms of O, what are the angles (i) AON (ii) BON (iii) AOB (iv) BOQ?
$\begin{aligned} & \text { Carbon } \\ & \text { dioxide }\end{aligned}+\begin{gathered}\text { Calcium } \\ \text { hydroxide }\end{gathered} \longrightarrow \begin{gathered}\text { Calcium } \\ \text { carbonate }\end{gathered}+$ Water
→State whether the mixture of oil in water is a homogeneous or heterogeneous mixture.
Name two metals which are ductile.
Name two metals which are malleable.
What is relative density of a substance?
Name two forces that act on any star.
Metalloid.
Name the physical quantity expressed in pascal.
What are the reasons for spread of swine flu?