How do you find the valency of an element? How can one find the valency of an element? How do cations and anions gain or lose protons and electrons? How do you show the number of protons and neutrons on a Bohr-Rutherford diagram?
An electron is a negatively charged subatomic particle that orbits the nucleus of an atom. The nucleus consists of positively charged protons and neutrally charged neutrons. The number of protons in the nucleus defines the atomic number of an element, and the number of electrons in a neutral at...
How do you calculate the atomic number of isotopes? What is relative abundance of isotopes? How is the atomic mass of an element calculated? How to find the amu of an isotope? How to find the number of neutrons in an isotope Does each isotope have its own mass number, or does each el...
Each12C atom has six protons and six neutrons in its nucleus, adding up to an atomic mass of 12 AMU.Electronshave a low mass, so they are assumed to have a negligible effect. Consequently, the nucleus accounts for almost the entire mass of the atom of any element, which means that a ...
How do you find the inverse function of x in F(x)= 2 e^(3x)? How do you change a fraction into a percent? If the remainder obtained by subtracting a number from its own square is 4 times the number, what is the number? How can one convert an improper fraction to mixed number ...
Curie actually discovered the element radium in 1898, an accomplishment that would make her the first female recipient of the Nobel Prize. However, three years earlier in 1895, a scientist named Wilhelm Röntgen first discovered X-rays and the phenomenon of radioactivity (a term later coined by...
when they break off of atoms from nuclear fuel, such as uranium or plutonium, act like extremely small "missiles" and can easily penetrate matter. Gamma rays are photons, very much likelight, except they have more energy and can easily pass through several inches of a heavy element like ...
Atomic mass:The standard atomic weight of an element is the average mass of the element written in atomic mass units (amu). Even though each atom has roughly a whole number of atomic mass units, you will notice that the atomic mass on the periodic table is a decimal; that's because the...
Normal atoms are made up of protons and neutrons in the nucleus (see How Atoms Work), surrounded by a cloud of electrons. In plasma, the electrons separate from the nucleus. Once the energy of heat releases the electrons from the atom, the electrons begin to move around quickly. The ...
Artwork: Isotopes are atoms of an element that contain the same number of protons and electrons but different numbers of neutrons. An unstable (radioactive) isotope will naturally try to make itself more stable by getting rid of some of these particles and changing into a different atom....