What are the advantages and disadvantages of Mendeleev classification? When noble gases were discovered can be kept in a separate group without disturbing the existing order. Disadvantages: He couldn’t allocate a correct position to hydrogen. Atomic masses didn’t increase in a regular manner, so it was impossible to predict how many elements could be discovered […]
What is a quasi experiment example?
What is a quasi experiment example? This is the most common type of quasi-experimental design. Example: Nonequivalent groups design You hypothesize that a new after-school program will lead to higher grades. You choose two similar groups of children who attend different schools, one of which implements the new program while the other does not. Why […]
Why is Shield 2p better than 2s?
Why is Shield 2p better than 2s? 2p has higher energy level because the negatively charged electron experiences less of an effective nuclear charge than the 2s electron. What happens to shielding when you go down a group? Down a group, the number of energy levels (n) increases, and so does the distance between the […]
What is hydraulic principle?
What is hydraulic principle? The basic principle behind any hydraulic system is very simple – pressure applied anywhere to a body of fluid causes a force to be transmitted equally in all directions, with the force acting at right angles to any surface in contact with the fluid. This is known as Pascal’s Law. What […]
What is the DC voltage symbol?
What is the DC voltage symbol? Direct Current Voltage (DCV): Sometimes it will be denoted with a V– instead. This setting is used to measure direct current (DC) voltage in things like batteries. Alternating Current Voltage (ACV): Sometimes it will be denoted with a V~ instead. How do I measure DC voltage without a multimeter? […]
What are different types of polarization?
What are different types of polarization? Following are the three types of polarization depending on the transverse and longitudinal wave motion: Linear polarization. Circular polarization. Elliptical polarization. What are the 4 types of polarization? polarization Electronic polarization. Ionic polarization. Orientational polarization. Space charge polarization. What is meant by dielectric Polarisation? Dielectric polarization is the term […]
What is the structure and function of biomolecules?
What is the structure and function of biomolecules? Biomolecule, also called biological molecule, any of numerous substances that are produced by cells and living organisms. Biomolecules have a wide range of sizes and structures and perform a vast array of functions. The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins. What […]
What is the formula for distance in physical science?
Is a protozoa a virus?
Is a protozoa a virus? Diseases that are caused by viruses include the common cold, influenza, herpes, yellow fever, shingles, rabies, polio, and mononucleosis. Protozoa are single celled organisms. Most protozoa do not cause infections, but a few do. Malaria, dysentery, African sleeping sickness are caused by different species of protozoa. How can you distinguish […]
What is the important of digestive juices in digestive system?
What is the important of digestive juices in digestive system? Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins. The pancreas delivers the digestive juice to the small intestine through small tubes called ducts. Liver. Your liver makes a digestive juice called bile that helps digest fats and […]