Question

PEN = Proton, Electron, Neutron; the parts of an atom." Is an example of what mnemonic?

Option 1: Acronym
Option 2: Assonance
Option 3: Alliteration
Option 4: Simile

Answer 1

The mnemonic 'PEN = Proton, Electron, Neutron' is an acronym designed to help remember the parts of an atom. The sum of protons and neutrons is the mass number, and the space where electrons are found is called the electron cloud or orbital. Chemical elements are composed of these subatomic particles.

Step-by-step explanation:

The mnemonic PEN = Proton, Electron, Neutron is an example of an acronym since it is a word created from the first letters of the respective subatomic particles that make up an atom. Acronyms are used to help remember complex information by reducing it to a memorable word or phrase.

For the definitions requested:

1. The sum of the number of protons and neutrons in an atom is called the mass number.
2. The defined space around an atom's nucleus where an electron is most likely to be found is known as an electron cloud or orbital.

Chemical elements, such as carbon (C), hydrogen (H), and helium (He), are represented by symbols that are based on their English or Latin names. All matter is composed of these elements, which are made up of atoms that consist of protons and neutrons within the nucleus, and electrons that orbit around the nucleus.