Science Chem Int Ch 1 Vocab

The central region of an atom where most of the atom's mass is found is called the

The total number of protons and neurtons in an atoms nucleus is the 

A positively charged particle located in an atom's nucleus is called the 

What is this image a picture of?

An atom of one element that has a different number of neutrons than an atom of the same element

What is the atomic mss number for this element?

A negatively charged particle located outside an atom's nucleus is an

An atom of group of atoms that have a charge (positive or negative)

The number of protons in the nucleus of an atoms is the elements

Most of the elements on the periodic table are 

Elements that are poor conductors of heat & electricity, brittle, without metallic luster are 

A table of the elements arranged by atomic number that shows the patterns of their properties

Elements that are shiny, good conductors of heat and metal, ductile and malleable are known as

An element that has both metal and nonmetal properties is called a 

What is the symbol for this element?

The average mass of the atoms of an element is called the 

What is the atomic number for this element?

A horizontal row in the periodic table of elements is know as a 

A vertical column in the periodic table of elements (they have similar properties) is called a

A particle that has no electric charge and is located in an atoms nucleus is a