Paired electrons in one of the subshell become unpaired and are promoted to higher subshell to create more than one valencies.
The valency of an element refers to the combining power of a given element. The valencies of all the elements is contained in the table of valencies. The valencies of the elements can be obtained by looking at the groups in the periodic table.
A compound is a combination of more than one element. (In an "element", all atoms - except perhaps for small amounts of impurities - have the same number of protons.)A compound is a combination of more than one element. (In an "element", all atoms - except perhaps for small amounts of impurities - have the same number of protons.)A compound is a combination of more than one element. (In an "element", all atoms - except perhaps for small amounts of impurities - have the same number of protons.)A compound is a combination of more than one element. (In an "element", all atoms - except perhaps for small amounts of impurities - have the same number of protons.)
All isotopes of an element have the same number of protons, otherwise they would not be the same element. What varies is the number of neutrons, they can be more or less than in the stable isotope(s) of the element.
noo i think
No, each element has a unique atomic number that corresponds to the number of protons in its nucleus. Changing the number of protons would change the element itself.
The element with one more proton than argon is potassium, which has atomic number 19. Argon has an atomic number of 18.
numbers
Polyatomic number are ions made up of more than one atomic element
An atom of a certain element with a different number of neutrons compared with the common form of the element is called an isotope. Isotopes have the same number of protons and electrons in an atom, but a different number of neutrons (which means that they have a different atomic mass number).
No, an element is 1 atom with a certain number of protons, neutrons, and electrons.
The number of elements is more than the number of isotopes. There are 118 known elements on the periodic table, while each element can have multiple isotopes with varying numbers of neutrons. The number of isotopes per element can range from a few to dozens, depending on the element.
No element contains more than one element.