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The atomic number refers to the number of protons within an atom's nucleus and defines which element the atom is. And an ion is an atom with some level of positive or negative charge as a result of losing or gaining electrons, so ionisation has no effect on the atomic number (an ion of copper is still copper) and a negligable effect on the Atomic Mass - since electrons are relatively very light.
The only way the atomic number can change is through nuclear fission (elements decaying into isotopes and lower elements) or nuclear fusion (creating higher elements).
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Every element has its own atomic number the atomic number is the number of what?
the atomic number represents the number of protons in an elements atoms
What does the atomic number tells you?
The atomic number tells you how many protons and electrons are in a specific element.Atomic number tells us about protons. Number of protons that atom contains.
What determines the atomic number of a substance?
The atomic number is the number of protons in the nucleus of an atom, while the atomic mass is the total mass of the nucleus (both protons and neutrons)
Are most atoms neutral?
The atomic nucleus is not neutral, it is positively charged (the exact charge depends upon the element in question; the hydrogen nucleus is +1, the helium nucleus is +2, etc). The atom as a whole is electrically neutral, unless it becomes ionized.
What is a collection of atoms called?
A large collection of neutral atoms with the same atomic number is a sample of an element. Elements include include lithium, hydrogen, neon, and oxygen. Note that different isotopes of elements exist; these are atoms with the same atomic number but having a different number of neutrons.
How many electrons does Li-7 have?
3: The total number of electrons in any neutral atom is always the same as the atomic number of the element.
How is an atom's atomic number related to it's number of electrons?
For neutral atoms the atomic number is equal to the number of electrons.
In electrically neutral atoms the number of protons is the same as the number of .?
atomic number = number of protons = number of electrons (in a neutral atom)
What does the atomic number of an element say about the number of particles in atoms of that element?
The atomic number is equal to the number of protons and neutrons in a neutral atom.
Can the neutral atoms of tow different element have the same number of electron explain?
NO. The number of electrons in any neutral atom must be the same as the number of protons. The number of protons is the atomic number, if the atomic number is the same then the atoms are of the same element, not different ones.
How many atoms does electrons have?
Atoms have 1 to 118 electrons. For a neutral atom the number of electrons is equal to the number of protons (atomic number).
What does the atomic number determmine?
Atomic number is the number of protons in the nuclei of the atoms of an element. It is the number of protons that determines the atomic number. In a neutral atom, the number of electrons equals the number of protons. So in a way you could say that atomic number determines the number of electrons in a neutral atom.
What are protons and electrons equal to on the periodic table?
The equivalence is with the atomic number.
Form a atomic number of 15 atoms?
The atomic number of an atom refers to the number of protons in its nucleus. A neutral atom with an atomic number of 15 would have 15 protons, making it a phosphorus atom.
Neutral atoms of neon atomic number of 10 have the same number of electrons as each what except?
Neutral atoms of neon have the same number of electrons as atoms of fluorine, magnesium, and sodium, excluding helium atoms.
What is the formula used to calculate the number of electrons when only the atomic number is given?
The number of electrons in a neutral atom is equal to the atomic number. This is because in a neutral atom, the number of protons (which is the atomic number) is equal to the number of electrons to balance the positive charge of the protons.
Does number of electrons in an atom give it atomic number?
Yes, the number of electrons in an atom is equal to its atomic number. The atomic number is the number of protons in the nucleus of an atom, and since atoms are electrically neutral, they have the same number of electrons.
