Atoms and Molecules
These are made up of atoms.
What are molecules?
Periods are horizontal and groups are vertical.
What's the difference between periods and groups?
The number of protons in an atom.
What does the atomic number stand for?
Ionic Bonds
What type of bond makes NaCl (table salt)?
Purple cabbage juice and litmus paper.
What are two substances that can be used as a pH indicator?
This is the minimum number of atoms in a molecule.
What is two?
These elements are found in Group One on the Periodic Table.
What are the Alkali Metals?
This consists of protons and neutrons.
What is the nucleus?
This is the connection between atoms where two atoms share a valence electron.
What is a covalent bond?
This substance is neutral has the pH value of 7.
What is water?
Eight Protons
What are the number of protons in an Oxygen atom?
These elements are also known as “salt formers”.
What are Halogens?
These are located in the shell farthest from the nucleus.
What are valence electrons?
This is a process during which chemical bonds between atoms are broken and new ones are formed.
What is a chemical reaction?
Between 7 and 14.
What is the pH range for Basic substances.
This is an atom with an electric charge.
What is an ion?
These elements do not usually form molecules with other atoms.
What are the noble gases?
This is the space where electrons travel around the nucleus.
What is the electron cloud or shell?
Production of a gas, unexpected change of color, unexpected odor, and production of a solid substance.
What are examples of evidence that a chemical reaction has occurred?
Soap, drain cleaner, Alka Seltzer
What are examples of basic substances?
It determines the properties of the molecule.
What is the shape of the molecule?
Au, Pt, Ag, and W
What are elemental symbols that don't have to do with the English names of the elements? (Gold, Platinum, Silver, and Tungsten)
This is the center of an atom.
What is the nucleus?
This is a kind of chemical reaction that involves adding oxygen to another element.
What is oxidation?
Lemon, Lime, Grapefruit, Tomato Sauce
What are examples of acidic substances?