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What are polyatomic ions?????

Posted by Shreyansh Garchar 5 years, 3 months ago

2 answers

Shirish Patil 5 years, 3 months ago

A polyatomic ion is an ion composed of more than one atom. The ammonium ion consists of one nitrogen atom and four hydrogen atoms. Together, they comprise a single ion with a 1+1+charge and a formula of NH+4NH4+. The carbonate ion consists of one carbon atom and three oxygen atoms and carries an overall charge of 2−2−. The formula of the carbonate ion is CO2−3CO32−. The atoms of a polyatomic ion are tightly bonded together and so the entire ion behaves as a single unit.

1Thank You

Pradeep Mehta 5 years, 3 months ago

Group of atoms in compound or in elament that gains or lose elctron depending on its nature and carry a huge charge are called polyatomic ions. Ex- magnesium chloride,Ammonium chloride,ammonium carbonate etc.

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 is a scalar quantity.	Weight is a derived quantity. Weight has both magnitude and direction (towards the centre 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).

Mitosis	Meiosis
1) This division takes place in somatic cells and as a result of this division growth occurs.	1) This takes place usually in reproductive cells and as a result of this character one generation pass into the other.
2) Completed in one stage.	2) Completed in two stages.
3) Prophase is smaller (as compared to prophase of Meiosis).	3) Prophase longer than prophase of mitosis and divided into five substages.
4) No crossing over takes place.	4) Crossing over takes place in which exchange of segments of chromatids occurs.
5) Synapsis does not take place at metaphase.	5) Synapsis between homologous chromosomes takes place (bivalent stage).
6) At metaphase, centromere is towards equatorial plate and ends of chromosomes towards poles. Centromere divides.	6) At metaphase I, the centromere is towards poles and ends of chromosomes towards equatorial plate. Centromere does not divide.
7) Chromatids are long and thin.	7) Chromatids are shorter and thick
8) Cytokinesis follows karyokinesis.	8) After Telophase I, cytokinesis does not takes place always (may occur).

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576 Megapixels

The Resolution Of The Human Eye Is 576 Megapixels. The average human retina has five million cone receptors on it. Since the cones are responsible for colour vision, you might suppose that this equates to a five megapixel equivilant for the human eye.

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