Distinguish between(i) metal and non-met (ii) mass and weight
Answers
Answer:
Difference between metal and non- metal:
Metals have one to three electrons in their outer shell, whereas non-metals have four to eight electrons. Another difference is that metals tend to lose their valence electrons, but non-metals share or gain valence electrons. ... While metals are good conductors of electricity and heat, non-metals are poor conductors.
Diffetence between Mass and weight:
) Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object.
2) Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.
3) The Mass of an object doesn't change when an object's location changes. Weight, on the otherhand does change with location.
Hope this answer helps you!!
Metals and non-metals are substances that can be differentiated on the basis of various physical and chemical properties. Metals are the elements that are generally hard as strong metallic bond exists between the atoms. As against non-metals are the elements which are usually soft.
Generally, the elements containing 1,2 or 3 electrons in the valence shell of their structure are known as metals. While the elements with 4, 5, 6 or 7 electrons in their outermost shell are known as non-metals.
A large number of elements present in the periodic table are metals while a minority of elements in the periodic table are non-metals.
Sl. No. Differentiating Property Mass Weight
1 Definition
Mass is simply the measure of the amount of matter in a body.
Weight is the measure of the amount of force acting on a mass due to acceleration due to gravity.
2 Denotation
Mass is denoted by “M”.
Weight is denoted by “W”.
3 Formula
Mass is always constant for a body and there are several formulas to calculate mass.
One way to calculate mass is:
Mass = volume × density
Weight is the measure of the gravitational force acting on a body.
Weight can be calculated from the following formula:
Weight = mass × acceleration due to gravity
4 Quantity Type
Mass is a base quantity.
Mass only has magnitude and so, it a scalar quantity.
Weight is a derived quantity.
Weight has both magnitude and direction (towards the center of gravity) and so, it is a vector quantity.
5 Unit of Measurement
The SI unit of mass is Kilogram (Kg).
The SI unit of weight is Newton (N).
6 Gravitational Effect
Mass does not depend upon gravity and is constant everywhere.
Mass can never be zero.
Weight is dependent on the gravity and so, it varies from place to place.
Weight can be zero where there is no gravity (like space).
7 Measuring Instrument
Mass can be easily measured using any ordinary balance like beam balance, lever balance, pan balance, etc.
Weight can be measured by a spring balance or by using its formula.
These were the main differences between mass and weight which many students are confused about. It is important to know about this topic in detail as it is a crucial part of the mechanics part in physics. Often questions based on the mass and weight differences are included in the competitive exams also.
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