6th Grade CH 7 Terms

bases that dissolve in water

has a negative charge and travels around the nucleus

used to determine the concentration of acids or bases in a solution

choose ALL the characteristics of a base

1 sodium + 1 oxygen + 1 chlorine = bleach

the process in which different types of atoms join and form a new substance

the periodic table of the elements ____ the elements

an ionic compound produced from a reaction between an acid and a base

reaction in which a compound is broken down into simpler compounds

What does the chemical formula C₃H₈ tell us?

name of a special machine that smashes atoms

the center of an atom

classification system for elements

molecules formed from two or more different elements

man who developed the periodic table of elements

What forms when acids are dissolved in water?

substances that have only one kind of atom

choose the characteristics of both an acid and a base

What does the chemical formula NaCl tell us?

1 calcium + 1 carbon + 3 oxygen = toothpaste

acids that can burn skin and dissolve metals

the smallest recognizable piece of an element

What are 2 advantages for scientists to use chemical symbols?

the three main parts of an atom

What forms when positively and negatively charged ions attract each other?

Which atom has an outermost shell that is completely closed or filled up?

the space that represents the avergae distance that electrons are from the nucleus

choose ALL the characteristics of an acid

the study of matter

has a positive charge and is located in the nucleus

chemical symbols and numbers abbreviating the name of a compound

when a solution is neither basic nor acidic

What does the chemical formula C₆H₁₂O₆ tell us?

a substance that changes color when exposed to acid or base solutions

formed when atoms are joined together

what scientists think atoms are like, based on repeated observations

abbreviation for the name of an element

a reaction in which molecules combine to form a new substance

In what type of bond do atoms share electrons?

the number of protons must match the number of ______

has no charge and is located in the nucleus