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.
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∙ 15y agoWiki User
∙ 10y agoAtoms are composed of the subatomic particles electrons, protons, and neutrons. Elements are composed of one kind of atom. The identity of an element is determined by the number of protons in the nuclei of its atoms, which is called its atomic number. All atoms of the same element have the same number of protons.
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∙ 14y agoThe number of protons in an atoms nucleus defines the element.
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∙ 9y agoThis particle is called proton.
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∙ 14y agoprotons
Protons determine the identity of an element because each element has a unique number of protons in its nucleus, known as its atomic number. The atomic number determines the element's chemical properties and its place on the periodic table. Electrons also play a role in identity by determining the element's reactivity and bonding behavior.
The chemical reactivity of alkali metals increase when the atomic number increase.
Electrons are the atomic particles found in the orbitals or energy levels outside the nucleus of an atom. Electrons have a negative charge and are involved in chemical bonding and determining an element's reactivity.
Electron is an atomic particle that carries a negative charge.
This atomic particle is the neutron.
Protons determine the identity of an element because each element has a unique number of protons in its nucleus, known as its atomic number. The atomic number determines the element's chemical properties and its place on the periodic table. Electrons also play a role in identity by determining the element's reactivity and bonding behavior.
The main negatively charged particle in an atom is the electron. The electron controls the reactivity of an element. An even smaller particle is a quark, which composes protons and neutrons. Quarks can be either positively or negatively charged.
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
Atomic mass does not directly indicate an element's reactivity. Reactivity is primarily determined by the number of electrons in the outer shell of an element (valence electrons). Elements with a full or nearly full outer shell (noble gases) are generally unreactive, while elements with few electrons in the outer shell (alkali metals) are highly reactive.
The reactivity of halogens decreases with increasing atomic number.
This atomic particle is the neutron.
The chemical reactivity of alkali metals increase when the atomic number increase.
Electrons are the atomic particles found in the orbitals or energy levels outside the nucleus of an atom. Electrons have a negative charge and are involved in chemical bonding and determining an element's reactivity.
This particle is the proton.
A neutral atomic particle is called a proton. This is taught in science.
This atomic particle is the neutron.
In the atomic nucleus this particle is the neutron.