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Unit 4 Science-9

Properties of Matter and the Periodic Table

QuestionAnswer
Sub atomic particle that changes the identity of the element. Proton
Has the same number of Protons but different numbers of Neutrons. Isotope
are Carbon -14 and carbon-12 isotopes or different elements ? Isotopes
Atomic #3 and atomic # 17 Isotopes or different elements? different elements
What particles are used to determine atomic mass Protons + Neutrons
What is the difference between carbon 14 and carbon 12 2 neutrons
The subatomic particle that determines the chemical behavior of an atom. an electron
An element with 3 valence electrons and the greatest number of Protons. Thallium
A family on the periodic table is... A column of elements with the same # of valence electrons
A period on the periodic table is ... A row of elements with the same number of energy levels
The periodic table is arranged by... increasing atomic mass
Noble gasses are found in group___________ 18
What elements are found in the Alkali Metals family? Lithium, Sodium, Potassium, Rubidium, Cessium and Fransium
Which one is found to the right of the zig zag line on your periodic table, Metals, Non-metals or Metaloids? Non-Metals
Which one is found to the left of the zig zag line on your periodic table, Metals, Non-metals or Metaloids? Metals
Which one is found on the zig zag line on your periodic table, Metals, Non-metals or Metaloids? Metaloids
electrons located in the highest available energy level are called... Valence electrons
How many valence electrons does Carbon have? 4
How many electrons does carbon have? 6
Metals have a positive combining capacity because the tend to ___________ electrons. lose electrons
Non-metals have a negative combining capacity because they tend to _______________electrons. gain electrons
Halogens are the most reactive non-metals because they only needs to_______________ one electron gain
Alkali Metals are the most reactive metals because they only need to ______________one electron. lose
Chemical bonds are formed when electrons are______________ gained, lost or shared
Created by: ukamantauskas
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