atoms
The smallest particle in which an element can be divided and still be the same element.
what is an atom?
The process in which atoms are rearranged to produce new substances.
What is a chemical reaction?
The original arranger of the periodic table.
Who is Dmitri Mendeleev?
What element is most of your body made up of.
What is oxygen?
Poor conductors of heat and electricity.
What are nonmetals?
The small dense center of an atom that has a positive charge.
What is the nucleus?
A chemical reaction in which energy is released.
What is an exothermic reaction?
Types of elements that are shiny and conduct heat easily.
What are metals?
What is the first group on the periodic table called.
What are Alkali metals?
electrons move within an area around the nucleus called the.
What is the electron cloud?
Positively charged particles in the nucleus.
What are Protons?
A chemical reaction that requires an input of energy.
What is an endothermic reaction?
Each horizontal row of elements is called.
What is a period?
Which element has the lowest atomic mass.
What is hydrogen?
Elements that have some properties of metal and some properties of nonmetals.
What are metalloids?
Negatively charged particles in the nucleus.
What are neutrons?
Tells you how many of each type of atom are in a molecule.
What are subscripts?
Each vertical column of elements.
What is a group?
What element group does argon belong to.
What are noble gases?
A solid substance that may form in a solution.
What is precipitate?
The total number of protons and neutrons in an atoms nucleus is its.
What is Mass number?
A type of catalyst found in living things.
What are enzymes?
An abbreviation of an elements name.
What is a chemical symbol?
What element has the chemical symbol CF.
What is californium?
A number placed in front of the chemical formula.
What are coefficients?