An atom is the smallest particle of an element that still has all the properties of the element. Atoms are made up of smaller particles called protons, neutrons, and electrons. The smaller electrons orbit around a central nucleus of protons and neutrons.

Atom

atom: The smallest possible amount of matter which still retains its identity as a chemical element, consisting of a nucleus surrounded by electrons. proton: Positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element. It weighs 1 amu.

Electron

James Chadwick

Ernest Rutherford

Joseph John Thomson

By 1921 Rutherford and William Harkins had independently named the uncharged particle the neutron, while about that same time the word proton was adopted for the hydrogen nucleus. Neutron was apparently constructed from the Latin root for neutral and the Greek ending -on (by imitation of electron and proton).

Proton—positive; electron—negative; neutron—no charge. The charge on the proton and electron are exactly the same size but opposite.

A neutron has no net charge because the charge of the quarks that make up the neutron balance each other out.

Fundamental Subatomic Particles

Credit: PBS NOVA/Fermilab/Particle Data Group Protons are composed of two “up” quarks (each with a charge of +2/3) and one “down” quark (-1/3), while neutrons consist of one up quark and two down quarks.

U

: an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus.

The definition of a neutron is a nucleon with no charge. An example of a neutron is something that turns into a proton and electron. Neutrons are part of the nucleus of all atoms, except hydrogen, and have a mean lifetime of approximately 1.0×103 seconds as free particles.

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.

In chemistry, an element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei. Unlike chemical compounds, chemical elements cannot be broken down into simpler substances by chemical means.

Examples of elements include carbon, oxygen, hydrogen, gold, silver and iron. Each element has atoms with a characteristic number of protons, which defines the atomic number of the element. For example, all carbon atoms have six protons, and all oxygen atoms have eight protons.

An element is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element’s atoms have the same atomic number. Elements are chemically the simplest substances and hence cannot be broken down using chemical reactions.

Page 1. Literary Elements and Techniques. A literary element refers to components of a literary work (character, setting, plot, theme, frame, exposition, ending/denouement, motif, titling, narrative point-‐of-‐view). These are technical terms for the “what” of a work.

The Top 10 Story Elements for Picture Books

• Character. Characters are the heart and soul of any story.
• Conflict. They say that there are only four real conflicts in literature: man vs.
• Plot.
• Dialogue.
• Theme.
• Pacing.
• Word Play.
• Patterns.

What are the 4 elements of literature?

• Plot.
• Point.
• Setting.
• Theme.

What are Literary Devices? Metaphors, similes, imagery, personification, allusion, alliteration. What do they have in common? They are all forms of comparison—a way of perceiving and interpreting the world by examining an object’s relationship to other objects.

20 Top Poetic Devices to Remember

• Allegory. An allegory is a story, poem, or other written work that can be interpreted to have a secondary meaning.
• Alliteration. Alliteration is the repetition of a sound or letter at the beginning of multiple words in a series.
• Apostrophe.
• Assonance.
• Blank Verse.
• Consonance.
• Enjambment.
• Meter.

15 Literary devices to use in your writing:

• Allusion.
• Diction.
• Alliteration.
• Allegory.
• Colloquialism.
• Euphemism.
• Flashbacks.
• Foreshadowing.

Everyday Use by Alice Walker: Symbolism and other Literary…

• Point of View. “Everyday Use” is told in first-person point of view.
• Symbolism. The story is not only rich in symbolism, it is also about symbolism.
• Irony.
• Diction and Dialect.
• Source Credits:

Alice Walker’s “Everyday Use” highlights the importance of cultural heritage and family history through strong uses of symbolism. Maggie, her sister, is a symbol of respect and passion for the past.

Contemplative; Slightly Amused. In “Everyday Use,” the narrator is thinking over a lot of stuff, much of which has already taken place. In the early parts of the story, virtually everything she looks at reminds her of something from the past.

In her short story “Everyday Use,” Alice Walker takes up what is a recurrent theme in her work: the representation of the harmony as well as the conflicts and struggles within African-American culture. “Everyday Use” focuses on an encounter between members of the rural Johnson family.