If you know where a certain element sits in the table, and you know a little bit about the properties of the elements above, below, and either side, you can often figure out what the properties of that element will be.How do atoms make molecules and compounds? Atoms are a bit like ...
Atoms are the fundamental constituents of all elements found in the periodic table. Each element consists of a unique type of atom, characterized by its atomic number. For example, hydrogen atoms form the element hydrogen (H), oxygen atoms make up oxygen (O), and so on. Elements can exist...
answer. the elements are made up of atoms with fixed masses, and the number and type of atoms in each element in a given compound are fixed. q8. answer the following- a) name the element used as a standard for atomic mass scale. b) which particular atom of the above element is used...
2 All atoms of an element are alike in mass and other properties, but the atoms of one element are different from those of all other elements. 3 In each of their compounds, different elements combine in a simple numerical ratio: e.g. one atom of A to one of B (AB) or one atom ...
The number of neutrons in the nucleus, as you may have gathered from the above example, can however change, and we call atoms of the same element with different numbers of neutrons "isotopes". Sometimes these isotopes are stable, but often they are not and eventually decay. Discovery of ...
The correct answer: Atoms of oxygen have a total of eight electrons. These oxygen atoms are not stable. The stability depends on the electronic...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer y...
However, the nature of oxidation, metal dissolution, and interface reactions between the oxide film and the metal surface and all the element-specific effects remain elusive. The reason is that the underlying mechanisms are hidden in the nanoscale, and the atomic configurations and partitioning ...
This is equal to the sum of each individual isotope’s mass multiplied by its fractional abundance.average mass=∑i(fractional abundance×isotopic mass)iaverage mass=∑i(fractional abundance×isotopic mass)iFor example, the element boron is composed of two isotopes: About 19.9% of all boron ...
Every shell is complete, each orbital is filled with the right number of electrons, and as a result, noble elements are very stable. There is no chance of another molecule interacting with them, as they don’t have anything to offer. Imagine you are a tightrope walker and have a cane in...
Atoms of each element contain a characteristic number of protons and electrons. The number of protons determines an element’s atomic number and is used to distinguish one element from another. The number of neutrons is variable, resulting in isotopes, which are different forms of the same atom...