B protons are positive atoms and are inside the nucleus
5 is the atomic number, 11 is the atomic mass and boron is the element
Answer:
(1) breaking a pencil (2) rusting of iron
Explanation:
breaking a pencil does not alter the chemical properties of the pencil, it merely breaks it into 2 while the rusting of iron is changing the properties chemically because the iron is oxidizing and reacting with the water and oxygen in the atmosphere
Viscosity, is a state of matter where it resists flow or may be in thick semifluid form because of friction acting inside the matter.In this case, hot oil room temperature would lessen the viscosity of the oil (animal oil). Thank you for your question. Please don't hesitate to ask in Brainly your queries.
Answer:
<em>Option 'D' is correct.</em>
Step-by-step explanation:
Since we have given that
We will first find the "Discrimination":
Since discriminant is less than 0 i.e. D<0.
So, there will no real roots.
Hence, D = -28 and there is no real roots.
Therefore, Option 'D' is correct.
Explanation:
