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You can tell if a substance is an element or not by it's atoms. If it's a pure element, it will only have one type of atom (e.g. Copper atoms). If it's not an element it will have two or more types of atoms in it (e.g. Copper, Carbon and Lithium atoms).
You can tell which element an atom is by the amount of electrons it has (atomic number) For Example:
Hydrogen: 1 electron: Atomic Number 1
Helium: 2 electrons: Atomic Number 2
Molybdenum: 42 electrons: Atomic Number 42
Seaborgium: 106 electrons: Atomic Number 106
What else can I help you with?
Which part of the periodic table square tells you the number of protons and electrons?
The atomic number, which is located at the top of each element square in the periodic table, tells you the number of protons and electrons in an atom of that element.
What does the atomic number tells you about the element?
It tells you (1) how many protons are in the element, and (2) what the element is since all atoms of an element will have the same number of protons.It's D. The number of protons in its atoms.It tells how many protons/electrons that element has.
What does an atomic number tells you?
The atomic number tells you the number of protons in the nucleus. As such, it defines the element, since each element has a definite and defined number of protons. In the element, it also tells you the number of electrons, since the element (not the ion) has a neutral charge and protons = electrons.
What does the mass of an element tell you about a molecule?
it tells you how much of the molecule the element is
What does carbons group number tells you about the element?
Tells you where this element resides in the period table. tell you which group,,metallic , gas, or liquid.
The atomic number of an element tells the?
atomic number tells us the number of protons and electrons in the given atom. As Atomic No. = no. of protons = No. of electrons
What does the mass percent of an element tell you about molecule?
it tells you how much of the molecule the element is
What does mass percent of an element tell you about a molecule?
it tells you how much of the molecule the element is
What does an element atomic number tell about the elements?
It tells you (1) how many protons are in the element, and (2) what the element is since all atoms of an element will have the same number of protons.It's D. The number of protons in its atoms.It tells how many protons/electrons that element has.
Element's atomic number tell about that element?
The atomic number tells you the number of protons in the nucleus of that element.
What is a part of a map that tells direction?
The part of a map that tells direction
What The part of a map that tells directions?
The part of a map that tells direction
