Which is the basic unit of matter? In turn, the atom is the fundamental unit of matter…, that is, of an element. The number of positively charged protons and neutral neutrons in an atomic nucleus account for most of the mass of an atom. Each negatively charged electron that orbits a nucleus is about 1/2000th […]
Who is credited with creating the first periodic table?
Who is credited with creating the first periodic table? British chemist John Newlands was the first to arrange the elements into a periodic table with increasing order of atomic masses. He found that every eight elements had similar properties and called this the law of octaves. How did Moseley establish more accurate periodic table? by […]
Is genetic engineering in demand?
Is genetic engineering in demand? “Today, demand for genetic engineers is rising in India as well as abroad.” After pursuing courses in genetic engineering, you can work in medical and pharmaceutical industries, research and development departments, agricultural sector, genetic engineering firms, chemical companies, etc. Which country is best for genetic engineering? Switzerland, the USA, England […]
Is E coli a vector-borne disease?
Is E coli a vector-borne disease? Flies can carry diseases such as typhoid fever, cholera, and dysentery. Cockroaches can carry diseases such as Escherichia coli (E. Coli), and Salmonella food poisoning. Rats and mice can carry diseases such as rat-bite fever, leptospirosis, and Salmonella food poisoning. Can humans be vectors of disease? Many factors affect […]
Is it possible for a solid metal ball to float in mercury?
How do particles behave in solid?
How do particles behave in solid? Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. In the solid the particles vibrate in place. Liquid – In a liquid, particles will flow or glide over one another, but stay toward the […]
What is an example of a positive mutation?
What is an example of a positive mutation? Quick Points. Mutations are changes in the DNA of an organism. Mutations can be beneficial, benign, or malignant, depending on where in the genetic code they are located. Examples of beneficial mutations include HIV resistance, lactose tolerance, and trichromatic vision. What is the most harmful mutation? 1). […]
Who found atom first?
Who found atom first? Democritus Why can’t scientists see inside an atom? Almost all of an atom’s mass comes from the protons and neutrons in the nucleus. However, because electrons orbit around the nucleus, most of an atom is empty space! You can’t see atoms with the naked eye, because they’re simply too small. Using […]
Is it better to connect speakers in series or parallel?
How do freedivers not get the bends?
How do freedivers not get the bends? Free divers really don’t have to worry about decompression sickness (the bends) because they are not breathing compressed air underwater. They are simply taking a breath of air at the surface, descending, and returning to the surface with that same breath of air. Things just go back to […]