By the number of protons in the nucleus. So the atomic number decides the element. If it is 1, then that is Hydrogen element. 2 is for Helium, 3-Lithium, 4-Berilium, 5-Boron and so on. Gold element has 79 protons in its nucleus. Mercury has 80. So with a high sophisticated technology if we take only one proton from each mercury atom, then we can produce gold. So mercury has been changed into gold. So transition of element is only by physical means not by chemical means.
if you know the definition of an element you could easily determine what it is:
" an element is a substance containing only one type of atom and no others "
so any compound that contains the same type of atom is called an element.
example: O2, H2, N2, Cl2....etc.
The atomic number. this is the number of Protons in the nuclei.
Number of protons. This also gives an element its atomic number. (eg. hydrogen is element number 1; so has 1 proton, oxygen is 8, so has 8 protons; carbon is 6, so has 6 protons, etc)
An element is determined by the number of protons in the nuclei of its atoms. This is the atomic number of the element.
penis
Any person can be described as "determined".
It is determined by the wavelengths of light that reach your eyes.
For the most part, yes the quantities of each are different. Light nucleii can have the same number of protons and neutrons and be stable enough to stay the same element (deuterium = 2H, 4He, 6Li , 10B, 12C, 14N, 16O, 20Ne, 24Mg, 28Si, 32S, 36Ar, 40Ca are stable), but a nucleus of a given element can sometimes have more or less neutrons, and be stable. Tin is the heaviest nucleus that has an isotope where #p = #n, and this isotope is very unstable
The electromagnet (polarity) is determined by the direction of current.
The pitch of a sound can be determined by its frequencyalone.
The period of an element is determined by electronic configuration.Period is same as the number of energy levels of the element.
The identity of an element is determined by the number of protons in the nuclei of its atoms. This is the atomic number of an element.
The atomic number of an element is determined by the number of protons within it's nucleus.
The atomic number of an element is determined by the number of protons in its nucleus.
^.^
The identity of an element is determined by the number of protons.
Protons. This determines what material the element is.
the number of its protons
electron configuration
Elemental carbon can have two different solid phases with differing spatial (position) ... Crystal structures are determined experimentally by X-Ray Diffraction. So the position of the element is determined experimentally by X-ray diffraction of a crystal of the element.
The number of protons in the nucleus determines the identity of the element.
It is the same as the element’s atomic mass, but in grams.