The two criteria used by Mendeleev to classify the elements in his periodic table are: Increasing atomic mass Grouping of elements having... View Article
The elements are classified into different groups and periods based on their properties. The classification of elements helps us to learn,... View Article
Reversible Change --A change that can be reversed is called a reversible change. The freezing of ice and the melting of wax are examples of... View Article
The electron-dot structure is the diagrammatic representation of elements that show the bonding between atoms of a molecule, the lone pairs of... View Article
Halogens are strong oxidising agents because they have a high tendency to accept electrons. The halogens are a Group 17 element in the periodic... View Article
The electrons left in the valence shell are 2. Xe (Xenon) has eight valence electrons and it shares six electrons with six Fluorine (F) atoms to... View Article
One atmospheric pressure (atm) is equal to 101325 pascals, or newtons of force per square metre, equivalent to 760 mmHg (torr). Explore more such... View Article
Chlorine has an atomic number of 17.Therefore, the electron configuration of chlorine is 1s2 2s2 2p6 3s2 3p5 Explore more such questions and... View Article
If CO2 is passed through lime water for a short duration, it turns lime water milky. It is due to the white precipitation of calcium carbonate.... View Article
The valency of magnesium with atomic number 12 is 2. We know that the electronic configuration of magnesium is 2, 8, 2. As the valance shell... View Article
The difference between the acids and bases are: Acids are sour in taste and bases are bitter in taste Acids turn blue litmus to red, but... View Article
An example of Urochordata is herdmania. Urochordata also known as Tunicates, is a marine invertebrate animal, a member of the subphylum Tunicata.... View Article
The difference between sepaloid and petaloid is: If a perianth is green, then it is known as sepaloid. If a perianth is colourful, then it is... View Article
All living things need oxygen (air) to survive. During the respiration process, all the living things take oxygen from the air and give out... View Article
The vegetative propagule is an asexual method of plant reproduction. In dahlia plant, it is developed by fasciculated tuberous roots. Explore... View Article
