Table of Contents
Is an element determined by number of protons?
The number of protons determines an element’s atomic number and is used to distinguish one element from another. The number of neutrons is variable, resulting in isotopes, which are different forms of the same atom that vary only in the number of neutrons they possess.
What property of an element is determined by the number of protons in its nucleus?
atomic number
The number of protons in the nucleus of an atom is its atomic number, which is unique to each element. The number of protons identifies an element and determines its chemical properties. The elements are arranged in order of increasing atomic number on the periodic table.
What determines what element the nucleus is?
The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral. Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.
What are chemical properties determined by?
An element’s unique chemical properties are determined by its number of electrons. Remember, an element’s atomic number indicates total number of protons as well as total number of electrons (in a neutral atom).
What determines element type?
An element and its location in the periodic table is determined according to the number of protons in the nucleus. The electrons influence the atom’s electric charge. The number of neutrons influences the element’s mass; that is how isotopes of the same element differ.
What number determines the identity of an element?
protons
The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).
Which number determines the chemical properties of an element?
valence electrons
Electrons located in the outermost shell of the electron cloud are called “valence electrons” and have the highest energy. Valence electrons determine the chemical properties of an element, or how the valence electrons of one element are shared or traded with valence electrons of other elements to create new molecules.
What determines the element carbon?
And element is defined by the number of protons in the nucleus. One proton is hydrogen, two is helium, three, lithium, four, beryllium, five, boron, and six is carbon. The number of neutrons and electrons can change. But by definition, any atom with six protons is a carbon atom.
How are the protons and neutrons of an atom determined?
Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.
How is the chemical mass of an atom determined?
The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus. The element oxygen has an atomic number Z=8, while carbon has Z=6. The atomic mass of the nucleus is given by, A=Z+N, where, N, is the number of neutrons in the nucleus.
What makes up the nucleus of an atom?
The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral. Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.
How does the number of electrons and protons affect the charge of an atom?
An atom that is not electrically balanced, that is, an atom with a different number of electrons and protons, is called an ion, and its charge depends on the lack or excess in the number of electrons in comparison with the number of protons. The number of neutrons influences the element’s mass; that is how isotopes of the same element differ.