Asked in Chemistry, Periodic Table
Why does the third period in the periodic table contain 8 elements?
Because it corresponds to the filling of the 3s and 3p subshells (of the third shell) which take a total of 8 electrons, two in the 3s and 6 in the 3p subshell. Each additional electron in these sub shells represents a different element eg 1 electron, 3s1, corresponds to sodium, 3 electrons, 3s2, 3p1, correspond to aluminium, 7 electrons, 3s2, 3p5, to chlorine. ...
Asked in Chemistry
What does each dot in an electron dot diagram represent?
Each dot represents a valence electron. Valence electrons are the elcetrons on the outer electron shell of an atom. ...
How many are each electron shell in an atom in argon?
Argon has 2 electron shells with 2 and 8 electrons in the 1st and 2nd shell respectively. ...
Asked in Science, Atoms and Atomic Structure
What energy does it take to remove an electron from an atom?
This is called the ionization energy and an is different for each electron in the atom. Electrons in the outer shell (furthest from the nucleus) have the lowest ionization energy, electrons in the innermost shell (closest to the nucleus) have the highest ionization energy. ...
What is the outer shell of an electron called?
The electron shell is also called the principle energy level in chemistry and atomic physics. The shells starting closest to the nucleus names go from shell 1 or shell K, shell 2 or shell L,shell 3 or shell m, etc. Each shell contains a certain amount of electrons the first shell starts with two and the number increases for each shell. ...
Asked in Atoms and Atomic Structure
Number of electrons on a electron cloud?
Each atom on the periodic table has a different number of electrons which corresponds to its element number. The electrons are located in different atomic orbitals, or electron clouds, labeled s, p, d, and f. The numbers of electrons within each orbital is determined by quantum mechanical rules, but can easily be looked up in a table of electron configurations. ...
Asked in Chemistry, Atoms and Atomic Structure
When a compound is formed by two or more atoms of different elements joining the outer electron shell of the compound is completely filled with elecrons?
No. The valence shell of each atom in the compound is filled, each achieving a noble gas configuration. ...
Asked in Chemical Bonding
How many electrons are in each of the first two shells if an atom contains eight electrons?
The first shell can have 2 electrons, the second shell has 8 electrons and the third shell has 8 electron also. No matter what, electron fill up the first shell and then move into the next shell and then the next one. To answer the question, the first shell would have 2 electron and then the second shell would have six. ...