Subatomic Particles ⚛️
This subatomic particle has a positive charge.
What is a proton?
The dense, central core of an atom containing protons and neutrons.
What is the nucleus?
Atoms of the same element that have a different number of neutrons.
What is an isotope?
The one or two-letter abbreviation for an element, like 'O' for Oxygen.
What is the chemical symbol?
The smallest, most basic unit of a chemical element.
What is an atom?
Found in the nucleus, this particle has no charge.
What is a neutron?
The overall charge of the nucleus.
What is positive?
An atom that has gained or lost electrons, resulting in an overall electrical charge.
What is an ion?
This whole number on the periodic table tells you the number of protons in an element.
What is the atomic number?
Two or more atoms chemically bonded together, like H₂O.
What is a molecule?
This negatively charged particle zips around the nucleus in shells or orbitals.
What is an electron?
In a neutral atom, the number of electrons is equal to the number of these particles.
What are protons?
An atom that loses one or more electrons becomes this type of ion with a positive charge.
What is a cation?
To find the number of neutrons in an atom, you subtract the atomic number from this number.
What is the mass number?
The outermost electron shell of an atom.
What is the valence shell?
Together, these two particles make up the nucleus and account for most of an atom's mass.
What are protons and neutrons?
The number of protons in the nucleus determines this fundamental property of an atom.
What is the atomic number (or the element's identity)?
An atom that gains one or more electrons becomes this type of ion with a negative charge.
What is an anion?
An element with 8 protons and an atomic mass of approximately 16.00.
What is Oxygen (O)?
The electrons located in the outermost shell, which are involved in chemical bonding.
What are valence electrons?
This particle has a mass so small that it's often ignored when calculating the atomic mass.
What is an electron?
Most of an atom's volume is made up of this empty space where electrons orbit.
What is the **electron cloud**?
Carbon-14 is a famous isotope of Carbon. It has 6 protons and this many neutrons.
What is 8? (Mass number 14 - Atomic number 6 = 8)
The periodic table is arranged in order of increasing this value.
What is the atomic number?
The tendency of atoms to prefer to have eight electrons in their valence shell, driving chemical reactions.
What is the octet rule?