Mixtures and Solutions
Flashcard
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
Barbara White
FREE Resource
Student preview
13 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Atom Noun
[at-uhm]
Back
Atom
The smallest functional unit of all matter, consisting of a nucleus of protons and neutrons and orbiting electrons.
Example: This diagram shows an atom's structure: a central nucleus with protons and neutrons, and electrons orbiting the nucleus in distinct energy shells.
2.
FLASHCARD QUESTION
Front
Chemical Bond Noun
[kem-i-kuhl bond]
Back
Chemical Bond
The force of attraction that holds atoms together in a molecule or compound, resulting from electron interactions.
Example: This image shows how atoms, like Oxygen (O) and Hydrogen (H), are held together by chemical bonds to form a single water molecule.
3.
FLASHCARD QUESTION
Front
Covalent Bond Noun
[koh-vey-luhnt bond]
Back
Covalent Bond
A type of chemical bond formed when two atoms achieve stability by sharing one or more pairs of electrons.
Example: This diagram shows two hydrogen atoms and one oxygen atom sharing their outer electrons to form strong connections, called covalent bonds, creating a water molecule.
4.
FLASHCARD QUESTION
Front
Molecule Noun
[mol-i-kyool]
Back
Molecule
A neutral group of two or more atoms held together by strong chemical bonds, specifically covalent bonds.
Example: This diagram shows a carbon dioxide (CO₂) molecule, where one carbon atom is chemically bonded to two oxygen atoms, forming a single particle.
5.
FLASHCARD QUESTION
Front
Element Noun
[el-uh-muhnt]
Back
Element
A pure substance consisting of only one type of atom, which cannot be broken down into simpler substances.
Example: This diagram shows the structure of a single atom, which is the basic unit that makes up an element. All atoms of a specific element are the same.
6.
FLASHCARD QUESTION
Front
Diatomic Element Noun
[dahy-uh-tom-ik el-uh-muhnt]
Back
Diatomic Element
An element that naturally exists as a stable molecule containing two atoms bonded together, rather than as individual atoms.
Example: This image shows a molecule of oxygen (O₂), which is a diatomic element because it consists of two atoms of the same element chemically bonded together.
7.
FLASHCARD QUESTION
Front
Compound Noun
[kom-pound]
Back
Compound
A pure substance formed when two or more different chemical elements are chemically bonded together in a fixed ratio.
Example: This diagram shows that the compound water (H₂O) is made of two hydrogen (H) atoms chemically bonded to one oxygen (O) atom.
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