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Neutrons.
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∙ 13y ago
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Do protons of an element vary?
All atoms of the same element have the same number of protons. Atoms of different elements have different numbers of protons. The number of protons determines the element.
Do all the atoms have the same proton number?
In respect to different elements, no they don't, in respect to like atoms of one particular element, yes they do. The electrons are the particles that vary from like atoms of the same element. When the electrons and protons are uneven within an atom, you have a radioactive element.
Are Atomic numbers and numbers of protons the same?
Neutral atoms do. Neutral atoms need the same number of positively charged protons in the nucleus to balance that same number of negatively charged electrons in their orbitals around that atom's nucleus.
Why are protons and neutrons used in the subatomic particle?
Protons and neutrons provide the mass of an atom. Each different kind of element has a unique number of protons. For example: all hydrogen atoms have one proton. However, not all hydrogen atoms have the same mass. Some hydrogen atoms have no neutrons, one neutron, or two neutrons. Atoms of the same element (one proton) but different numbers of neutrons (different masses) are called isotopes of that element. All elements have isotopes. Some isotopes of elements are radioactive and are useful in medicine and energy applications (nuclear, for instance).
What element contains 7 electrons and 7 protons?
You should understand that while neutral atoms have the same number of protons and electrons, they do not usually have the same number of protons and valance electrons, because except for hydrogen and helium, atoms also have electrons in the inner shells, which are not valance electrons. Therefore, there is no atom which has 7 protons and 7 valance electrons, although there is an element that has 7 protons, and there are several elements that have 7 valence electrons.
What element is composed of atoms that all have the same atomic number?
All elements are composed of atoms that all have the same atomic number. If the atomic number is different then you have a different element. The number of neutrons can be different and you will have a different isotope of that element with a different mass. An example of an element that only has one isotope is fluorine.
Is and atom and an element the samething?
No. Atoms are the building blocks of matter. Each element is composed of the same kind of atoms, according to their number of protons (atomic number). Molecules are composed of two or more atoms (they may be the same element or different elements), and compounds are composed of two or more kinds of atoms.
What are all elements are mixtures of?
An element is composed of atoms all with the same proton number(they are the same type). The only way the atoms in an element can vary is in the number of neutrons they have.
What is a unique subtance composed of atoms having the same atomic number?
A element is a unique substance that is composed of atoms having the same atomic number. Energy is the ability to do work.
What is a unique substance composed of atoms have the same atomic number?
I believe that is the definition of an element. true
An element is a substance composed of atoms that all have the same number of electrons?
No . all the atoms have same no of protones.....
an element is a substance composed of atoms that all have the same number of protons.True or false?
True apex
What is a pure substance composed of atoms with the same number of protons and cant be broken down?
A chemical element.
What Atomic particle controls its reactivity?
The number of protons in the nucleus will ALWAYS be the same for a specific element.(ex: Hydrogen always has EXACTLY 1 proton)But, the number of electons and neutrons can vary in a particular element.
What are Atoms with the same number of protons are?
All atoms with the same number of protons are atoms of the same element. The number of protons is the atomic number of the element.
Is a sample composed of atoms only having the same atomic number an isomer?
No. (Element is the word you're looking for.)
Are all sample of elements are composed of atoms with same atomic mass?
All atoms in a pure sample of one element have the same mass. The atoms in a different element have a different mass. Different atoms is what makes different elements.
