Table of Contents
What is the term for an atom that is electrically charged?
Atoms that have net electric charges are called ions. Positive ions are called cations and negative ions are called anions. Atoms have two types of charged particles: Protons have a positive charge and are found in the nucleus.
Are atoms indivisible?
Atoms are not indivisible or indestructible. While all atoms of a given element do have the same number of protons which gives them a great deal of their chemical character, they can vary in their mass and properties by changes in their number of neutrons and electrons.
Is every atom an isotope?
All elements have isotopes. There are two main types of isotopes: stable and unstable (radioactive). Some elements can only exist in an unstable form (for example, uranium). Hydrogen is the only element whose isotopes have unique names: deuterium for hydrogen with one neutron and tritium for hydrogen with two neutrons.
What is an isotope quizlet?
isotopes. Isotopes are atoms of an element with the normal number of protons and electrons, but different numbers of neutrons. Isotopes have the same atomic number, but different mass numbers.
What is a non neutral atom called?
Atoms that are not electrically neutral are called ions and examples of atoms frequently found in their ionic for include sodium, chlorine and magnesium.
Why are atoms called indivisible particles?
The term “atom” comes from the Greek word for indivisible, because it was once thought that atoms were the smallest things in the universe and could not be divided. We now know that atoms are made up of three particles: protons, neutrons and electrons — which are composed of even smaller particles, such as quarks.
What are atoms with the same number of protons called?
Atoms with the same number of protons but different numbers of neutrons are called isotopes of the same chemical element.
How are two atoms of the same element different?
Two atoms of the same chemical element are typically notidentical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.
Why do all isotopes of an element have the same atomic number?
Atoms of the same element, containing the same number of protons, but different numbers of neutrons, are known as isotopes. Isotopes of any given element all contain the same number of protons, so they have the same atomic number (for example, the atomic number of helium is always 2).
Can a chemical element have the same number of neutrons?
The same chemical element can have a different number of neutrons and still be the same element. We refer to the atoms of the same element with different numbers of neutrons as “isotopes”. While the particular isotope involved does not affect how an atom will react chemically, it does determine how the atom will behave in nuclear reactions.