VOCABULARY 1
A positively charged particle found in the nucleus of an atom.
What is PROTON?
Chemistry is in this branch of Science.
What are the PHYSICAL SCIENCES?
The smallest unit of an element that retains its chemical properties, consisting of protons, neutrons, and electrons.
What is ATOM?
The number of protons in the nucleus of an atom, which determines the element's identity.
What is ATOMIC NUMBER?
The weighted average mass of an atom's isotopes, measured in atomic mass units.
What is ATOMIC MASS?
A negatively charged particle that orbits the nucleus of an atom.
What is ELECTRON?
The total number of protons and neutrons in an atom's nucleus.
What is MASS NUMBER?
A one- or two-letter abbreviation representing an element on the periodic table.
What is CHEMICAL SYMBOL?
A vertical column in the periodic table.
What is GROUP?
A group of two or more atoms held together by covalent bonds.
What is MOLECULE?
A substance formed when two or more elements are chemically bonded together in fixed proportions.
What is COMPOUND?
A chart of elements arranged by increasing atomic number and grouped by similar chemical properties.
What is PERIODIC TABLE?
A subatomic particle with no electric charge, found in the nucleus of an atom.
What is NEUTRON?
A horizontal row in the periodic table, where elements have the same number of electron shells.
What is PERIOD?
The dense, positively charged center of an atom, containing protons and neutrons.
What is NUCLEUS?
The tendency of a substance to undergo chemical reactions, either by itself or with other materials.
What is REACTIVITY?
An electron in the outermost energy level of an atom.
What is VALENCE ELECTRON?
The way a mineral reflects light; a property describing how shiny or dull a material is.
What is LUSTER?
A well-substantiated explanation of some aspect of the natural world, based on a body of evidence and repeated testing.
What is THEORY?
A part or element of a larger system or compound.
What is COMPONENT?
A chemical reaction in which an acid and a base react to form water and a salt.
What is NEUTRALIZATION?
A series of actions or steps taken to achieve a particular outcome or result.
What is PROCESS?
A chemical bond formed by the sharing of electrons between atoms.
What is COVALENT BOND?
A covalent bond in which electrons are shared unequally, creating a dipole with partial positive and negative charges.
What is POLAR BOND?
The movement of something from one place, substance, or system to another.
What is TRANSFER?
A property of a material that allows it to be hammered or rolled into thin sheets without breaking.
What is MALLEABLE?
A chemical bond formed by the transfer of electrons from one atom to another, resulting in oppositely charged ions that attract each other.
What is IONIC BOND?
An atom or group of atoms that has gained or lost one or more electrons, giving it a positive or negative charge.
What is ION?
A property of substances, often acids or bases, that causes them to wear away or destroy other materials through chemical reactions.
What is CORROSIVE?
A property of a material that allows it to be drawn out into thin wires without breaking.
What is DUCTILE?
A compound formed when the hydrogen ion (H⁺) of an acid is replaced by a metal ion or another positive ion.
What is SALT?
A covalent bond in which electrons are shared equally between the bonded atoms.
What is NONPOLAR BOND?
A depiction or model that explains or symbolizes a concept, process, or system.
What is REPRESENTATION?
Atoms of the same element with the same number of protons but different numbers of neutrons.
What is ISOTOPE?
A material that has conductivity between that of an insulator and a conductor.
What is SEMICONDUCTOR?
A substance that increases the concentration of hydrogen ions (H⁺) with a pH less than 7.
What is ACID?
The act of explaining or making sense of information or data.
What is INTERPRETATION?
A substance that changes color to indicate the presence of an acid, base, or other chemical property.
What is INDICATOR?
A charged group of covalently bonded atoms that behaves as a single ion.
What is POLYATOMIC ION?
A substance that increases the concentration of hydroxide ions (OH⁻) in a solution, with a pH greater than 7.
What is BASE?