A pure substance that cannot be broken down into simpler components

what are characteristics that can be observed when substances REACT with each other ?

what elements are shiny, malleable, ductile, usually solid, and good conductors of heat and electricity?

what type of compound is formed with atoms combine by sharing electrons to form molecules?

What is NaCl?

Horizontal Rows on the Periodic Table

What is anything that has mass and volume?

what elements tend to be gases or brittle solids, that are dull, are non-malleable and non-ductile?

what type of compound is formed from combining metals and non-metals?

cadmium nitride ?

Vertical Rows on the periodic table

What are characteristics of matter that are often observed or measured?

what are solids, shiny or dull, may conduct electricity, poor conductors of heat, and are non-malleable and non-ductile?

the number of protons in an element is equal to what?

Iron (III) astatide?

What is the atomic number of Titanium?

What is a region surrounding the nucleus of an atom and may be occupied by electrons; also called an electron shell

what type of elements are highly reactive with halogens, reactive with oxygen and water, have a low melting points and are soft?

the number of electrons in an element is equal to what?

How would you name V3P4?

What atomic mass does nickel have?

what is a pure substance made of two or more kinds of elements combined in fixed proportions?

What family is very stable, un-reactive and include all gases?

the number of neutrons is equal to what ?

How would you name BeI2?