What is an atom, element, molecule, and compound? What is an
2017年3月29日 · An atom is a particle of matter that characterizes a chemical element. It is the smallest part of ordinary matter. It is made from particles called protons, neutrons and …
Atomic Models - Chemistry - Socratic
An atomic model is a theory trying to explain the structure of the atom. When the exact structure of the atom remained quite unknown, models were proposed based on experimental evidence …
How do atoms become ions? - Socratic
2014年3月21日 · An atom becomes an Ion (a) if it gains one or more electron(s) or (b) if it loses one or more electron(s). When it gains electrons it becomes negatively charged and is called …
Why do atoms emit or absorb light of specific wavelengths?
2016年2月21日 · The electrons in an atom can only occupy certain allowed energy levels. When an electron drops from a higher energy level to a lower one, the excess energy is emitted as a …
What are the names, charges, and locations of the three ... - Socratic
2015年11月13日 · Proton (charge of +e, in the nucleus), Neutron (0 charge, in the nucleus), and Electron (charge of –e, outside the nucleus). 1. Proton. This is a positively charged particle …
Isotope Notation - Chemistry - Socratic
An isotope is a variant of an element in which it has an equal number or protons but a varied number of neutrons. The notation of an isotope occurs by adding a subscipt and superscript to …
How would you compare and contrast atoms, ions, and isotopes?
2015年11月29日 · Atoms, ions and isotopes are very closely related. An atom is the smallest uncharged unit of a substance. This means a substance is made up of only that very type of …
Periodic Trends in Atomic Size - Chemistry - Socratic
2018年3月15日 · Periodic trends predict differences between elemental characteristics as you move across the periodic table. Trends are based on Coulomb's law which mathematically …
How many electrons go on each ring according to the Bohr model?
2016年3月28日 · Electrons in the Bohr model follow the number of elements in the rows of the periodic table. 2 in the first orbit 8 in the second and third ring 18 in the fourth etc... The Bohr …
When atoms gain or lose electrons what do they become?
2017年7月17日 · Ions - an ion is an atom or molecule which has gained or lost electrons. Atoms and chemical species lose or gain electrons when they react in order to gain stability. Thus, …