The atomic number tells how many ..................... and ........................ an element has. (neutrons - protons - ions - electrons)

Elements that share properties of both metals and nonmetals are called ..................

Copper is a chemical element with which symbol? (Cl - Cp - Co - Cu)

The scientist .............................. developed the Periodic Table of the Elements. (Dmitri Mendeleev - Robert Boyle)

The periodic table of elements is a chart that lists all of the known elements in order of their atomic number. (T-F)

Which one of these elements is NOT part of the noble gases family? ( Helium - Oxygen - Argon - Neon)

Elements in the same group will share the same ........................... (Atomic number - shell number - chemical properties)

Who am I? Clue 1: I am an unreactive metal and was first discovered around 5000 BC. Clue 2: I am very expensive. Clue 3: I am used to make jewelry and have the chemical symbol Au.

Who am I? Clue #1 - I am a noble gas. Clue #2 - I glow blue when an electric current is applied. Clue #3 - I am the third most abundant gas that makes up air. Clue #4 - I have 18 electrons.

Which is an element? (H2O - NaCl - KCl -Na)

The horizontal rows on the periodic table are called groups and the vertical rows are called periods. (T- F)

From the periodic table displayed, how many protons does an atom of Ag have?