Parts of an Atom
A subatomic particle with a single positive electrical charge, found in the nucleus of an atom
What is a proton?
A substance that cannot be broken down to other substances by chemical means.
What is an element?
A liquid that is a homogeneous mixture of two or more substances.
What is a solution?
a type of covalent bond in which electrons are shared equally between two atoms of similar electronegativity.
What is a nonpolar covalent bond?
A measure of the acidity of a solution, ranging in value from 0 (most acidic) to 14 (most basic).
What is potential hydrogen(pH)?
A subatomic particle with a single negative charge. One or more electrons move around the nucleus of an atom.
What is an electron?
An isotope whose nucleus decays spontaneously, giving off particles and energy
What is a radioactive isotope?
A substance that is dissolved in a solution.
What is a solute?
A chemical bond resulting from the attraction between oppositely charged ions
What is an ionic bond?
A substance that increases the hydrogen ion (H+) concentration in a solution.
Below 7 on the potential hydrogen (pH) scale
What is an acid?
A subatomic particle having no electrical charge, found in the nucleus.
What is a neutron?
The attraction between different kinds of molecules
What is adhesion?
The sticking together of molecules of the same kind, often by hydrogen bonds
What is cohesion?
A covalent bond between atoms that differ in electronegativity. The shared electrons are pulled closer to the more electronegative atom, making it slightly negative and the other atom slightly positive.
What is a polar covalent bond?
A substance that decreases the hydrogen ion (H+) concentration in a solution.
Above 7 on the potential hydrogen (pH) scale
What is a base?
The smallest unit of matter that retains the properties of an element
What is an atom?
An atom or group of atoms that has gained or lost one or more electrons, thus acquiring an electrical charge
What is an ion?
The dissolving agent of a solution. Water is the most versatile solvent known.
What is a solvent?
A type of weak chemical bond formed when the slightly positive hydrogen atom of a polar covalent bond in one molecule is attracted to the slightly negative atom of a polar covalent bond in another molecule
What is a hydrogen bond?
Process by which the pH of the ocean is lowered (made more acidic) when excess atmospheric CO2 dissolves in seawater.
What is ocean acidification?
A substance containing two or more elements in a fixed ratio.
What is a compound?
One of several atomic forms of an element, each with the same number of protons but a different number of neutrons.
What is an isotope?
A solution in which water is the solvent.
What is an aqueous solution?
The attraction of a given atom for the electrons of a covalent bond
What is electronegativity?
A chemical substance that minimizes changes in pH by accepting hydrogen ions from or donating hydrogen ions to solutions.
What is a buffer?