Which particles contribute the most to the chemical properties of an atom?
The electrons are most responsible for the chemical properties of the atom and are located outside of the nucleus.
Which atomic particles make the greatest contribution to the mass of an atom?
Protons are massive particles with unit positive electric charge; neutrons are massive particles with NO electric charge. Together these constitute MOST (>99.9%) of the mass of the atom.
Which particle is responsible for chemical properties of matter?
Answer and Explanation: The chemical properties of an element are determined by the subatomic particle known as a proton.
Which particles make the greatest contribution to the mass of an atom select all that apply?
Neutrons are located in the nucleus with the protons. Along with protons, they make up almost all of the mass of the atom.
What particle is most important in an atom?
electrons I would say proton and electron are the two most important subatomic particles in an atom. The number of protons inside a nucleus must equal to the number of electrons outside of the nucleus. This number determines all the chemical properties of the atom, which governs the behaviors of all matters in our world.
Which particle that determines the kind of element and the chemical properties of an atom?
protons The number of protons in the nucleus determines which element an atom is, while the number of electrons surrounding the nucleus determines which kind of reactions the atom will undergo. The three types of subatomic particles are illustrated below for an atom of helium—which, by definition, contains two protons.
What particles contribute to an atom’s mass?
The mass of a proton or neutron is about 1,836 times larger. This explains why the mass of an atom is primarily determined by the mass of the protons and neutrons in the nucleus. The electron has other intrinsic properties.
Which particle contribute to the atomic number and why?
The protons are the subatomic particles that contribute to the atomic number of any given element.
What determines the chemical property of atom?
The chemical properties of an element are determined by the number of electrons in its atom, which in turn is determined by the number of protons.
What is the chemical properties of atom?
Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. The chemical properties of the atom are determined by the number of protons, in fact, by the number and arrangement of electrons. The configuration of these electrons follows the principles of quantum mechanics.
Does the electron contribute to the mass of an atom Why?
The mass of an electron is only about 1/2000 the mass of a proton or neutron, so electrons contribute virtually nothing to the total mass of an atom.
Which sub atomic particle is the most important and why?
The electron is one of the most important subatomic particle, it is small compared to protons and neutrons. it is 1,800 times smaller than them. If we consider that the neutron mass = 1, the relative mass of the electron is 0.0005439 or about 9.109 × 10-31 kg.
Why is a proton important for an atom?
Function in the Atom The protons inside an atom's nucleus help bind the nucleus together. They also attract the negatively charged electrons, and keep them in orbit around the nucleus. The number of protons in an atom's nucleus determines which chemical element it is.
What determines chemical properties of an element?
The chemical properties of an element are determined by the number of electrons in its atom, which in turn is determined by the number of protons.
What contributes to the chemical properties of an element?
The chemical properties of an element are due to the distribution of electrons around the atom's nucleus, particularly the outer, or valence, electrons; it is these electrons that are involved in chemical reactions.
Which of the following has influence on the chemical properties of an element?
The properties of an element are determined largely by the electrons in its outermost or valence shell. Valence electrons interact with other atoms and take part in all chemical reactions, while inner shell electrons have little influence on the properties of elements.
What does the chemical property of an atom depend on?
The chemical properties of an atom depend upon the atomic number. From the atomic number, we can get valence electrons that determines the chemical properties of it.
What determines the chemical properties of an element?
The chemical properties of an element are determined by the number of electrons in its atom, which in turn is determined by the number of protons.
Does the electron contribute?
The mass of an electron is only about 1/2000 the mass of a proton or neutron, so electrons contribute virtually nothing to the total mass of an atom. Electrons have an electric charge of −1, which is equal but opposite to the charge of a proton, which is +1.
Which particle is most important in an atom?
electrons I would say proton and electron are the two most important subatomic particles in an atom. The number of protons inside a nucleus must equal to the number of electrons outside of the nucleus. This number determines all the chemical properties of the atom, which governs the behaviors of all matters in our world.
What is the most important particle?
The electron is one of the most important subatomic particle, it is small compared to protons and neutrons. it is 1,800 times smaller than them.
What part of the atom determines the chemical properties of the atom?
Since it is the electrons that determine how one atom interacts with another, in the end it is the number of protons in the nucleus that determines the chemical properties of an atom.
What are the chemical properties of atom?
Chemical properties
- Atomic number. The atomic number indicates the number of protons within the core of an atom. …
- Atomic mass. The name indicates the mass of an atom, expressed in atomic mass units (amu). …
- Electronegativity according to Pauling. …
- Density. …
- Melting point. …
- Boiling point. …
- Vanderwaals radius. …
- Ionic radius.
What determines the chemical property of an atom?
A neutral atom has an equal number of protons and electrons so that the positive and negative charges exactly balance. Since it is the electrons that determine how one atom interacts with another, in the end it is the number of protons in the nucleus that determines the chemical properties of an atom.
What is chemical property of atom?
The chemical properties of an element are determined by the number of electrons in its atom, which in turn is determined by the number of protons.
What gives an atom its chemical properties?
The chemical properties of the atom are determined by the number of protons, in fact, by the number and arrangement of electrons. The configuration of these electrons follows the principles of quantum mechanics.
What is chemical properties of atoms?
Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. The chemical properties of the atom are determined by the number of protons, in fact, by the number and arrangement of electrons. The configuration of these electrons follows the principles of quantum mechanics.
Do neutrons contribute to the mass of an atom?
The number of neutrons in a nucleus affects the mass of the atom but not its chemical properties. Thus, a nucleus with six protons and six neutrons will have the same chemical properties as a nucleus with six protons and eight neutrons, although the two masses will be different.
What is the role of the neutron in an atom?
Neutrons are required for the stability of nuclei, with the exception of the single-proton hydrogen nucleus. Neutrons are produced copiously in nuclear fission and fusion. They are a primary contributor to the nucleosynthesis of chemical elements within stars through fission, fusion, and neutron capture processes.
What determines the chemical properties of an atom quizlet?
The chemical properties of an element, are determined by the number of protons in the nucleus. This number of protons is called the atomic number. The mass of the atom, its atomic mass, depends upon the sum of the number of protons and the number of neutrons present in the nucleus.