Feb 03, 2011 · The total number of protons is the atomic number of the atom that determines the number of its electrons, the number of its principal energy levels, and the number of its valence electrons. Even
Chemical Elements Article about Chemical Elements by The
The AtomProperties of The ElementsOfficial Symbols and Names For The ElementsThe Elements Through The AgesBibliographyThe Periodic Table Boundless ChemistryChemical properties of each element are determined by the elements electronic configuration, and particularly by its outermost valence electrons.
Chemical properties are those properties that change the composition of an element or compound. Examples of chemical properties could include heat caused by combustion, a chemicals reaction with water, or the pH of an element. Below are some example elements and compounds and their chemical properties. H 2 O
Feb 12, 2014 · It is not the valence electrons themselves, but the number of valence electrons that determines the chemical properties of an element. Elements whose atoms have the same number of valence electrons are grouped together in the Periodic Table. Generally, elements in Groups 1, 2, and 13 to 17 tend to react to form a closed shell with a noble gas electron configuration ending in ns^2 np^6.
How Is the Identity of an Element Determined?Apr 15, 2020 · The identity of an element is determined by the total number of protons present in the nucleus of an atom contained in that particular element. An atom is the smallest fundamental unit of an element. In chemistry, an element is defined as a constituent of matter containing the same atomic type with an identical number of protons.
The chemical properties of an element are determined by the number of electrons in the electron shell closest to the nucleus of the atom. the outermost electron shell.
What Is a Chemical Element? Definition and ExamplesDec 05, 2019 · A chemical element is a substance consisting of only one type of atom. In other words, all atoms in an element contain the same number of protons. The identity of a chemical element cannot be changed by any chemical reaction. However, a nuclear reaction can transmute one element
What do protons determine about an element? SocraticSep 28, 2016 · The identity of the element. The number of protons, the number of positively charged, massive nuclear particles, gives Z, the atomic number. Z determines the identity of the element:Z=1 , hydrogen; Z=2 , helium; Z=3 , lithium;.. Z=26, iron;.. Z=92 , uranium. You don't have to remember these numbers, because for every exam in chemistry and physics you ever sit, you should be issued
Helium, chemical element, inert gas of Group 18 (noble gases) of the periodic table. The second lightest element, helium is a colorless, odorless, and tasteless gas that becomes liquid at -268.9 degrees Celsius. The boiling and freezing points of helium are lower than those of any other known substance.
what determines an elements chemical properties? Yahoo Nov 09, 2011 · The chemical properties of any element is determined by the number of electrons it has in its outermost shell. This determines the valency of the element, and gives us a reference to know whichWhat determines the chemical properties of an element The chemical properties of an element are determined by the electron configuration of the element, especially the valence shell electron See full answer below. Become a member and unlock all