NAME______Date______

HOMEROOM______

SCIENCEPractice TESTChapter 1

Use your periodic table for this practice test

Relax! Take a deep breath! Count backwards from 10! Now take your quiz!

  1. How would you classify Sodium (NA)- metal, nonmetal, or metalloid?

______

  1. Name two noble gases:
  1. Which elements have the following symbols?
  2. Ne ______
  1. Mn______
  1. O______
  1. H ______
  1. I ______
  1. Si ______
  1. Identify each of these as a physical or chemical property.
  1. Weight:______
  1. Flammability:______
  1. Ninety-six percent of the human body is made of oxygen, nitrogen, hydrogen and

a)Silicon

b)Carbon

c)Sodium

d)Nitrogen

  1. Which metal is liquid at room temperature?

a)Nickel

b)Mercury

c)Copper

d)Gold

  1. What is the chemical symbol for the element Iron? ______
  1. What does the number on top of the Chemical Symbols in each block of the periodic table mean? ______
  1. The ______of an object measures the amount of matter in the object. (weight, mass)
  1. The ______of an object measures the pull of gravity on the object. (weight, mass)
  1. Elements in the ______table are organized according to their chemical properties. (element, periodic)
  1. Two different compounds can contain the same ______. (elements, molecule)
  1. All salts can form______. (cubes/crystals)
  1. The compounds in a ______are not chemically combined. (solute, mixture)
  1. One property of most salts is that they melt at ______

______. (high temperatures, low temperatures)

  1. Two atoms that have the same number of protons must be the same ______. (element, molecule)
  1. What is the atomic number ofMercury?______What does this number mean?
  1. How are atoms and molecules related?
  1. How are compounds and molecules related?
  1. The atoms of an element have 7 protons, 7 neutrons, and 7 electrons. What is the atomic number of this element? What is the name and chemical symbol of this element?

The atomic number is ______.
The name of the element is ______.
The chemical symbol of the element is ______.
  1. What does the statement, “The properties of salts are different from the properties of the elements that make them” mean? Include an example in your answer.
  1. What is an alloy? Give an example of an alloy and tell why it is better than a pure metal.
  1. Explain how you would separate a mixture of water, sand, salt, and iron fillings into its four component parts.
  1. The atomic number of Oxygen is 8. The atomic weight (atomic mass) of Oxygen is 16. How many protons, neutrons, and electrons are in an oxygen atom?
  1. Draw an atom with 2 protons, 2 electrons and 2 neutrons. Identify and label the following parts: nucleus, neutrons, protons, electrons.