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atoms

science for 1st 6 weeks

QuestionAnswer
What is the bottom # on each periodic element called? The atomic mass.
What is the top # on each periodic element called? The atomic #
How do you find the neutrons? Subtract the atomic mass from the atomic #.
What charge does an electron carry? A negative charge.
What charge does a neutron carry? It carrys a Neutral charge.
What charge does the proton carry? a positive charge.
what makes up the center of the nuclues? Protons and Neutrons
What is the nueclues? The center of an atom.
How many electrons can be in the 1st shell? 2
How many electrons can be in the 2nd shell? 8
How many electrons can be in the 3rd shell? 18
What is shiny,hard and can conduct electricity? Metals
What is brittle,not easily molded into shapes? Non-Metals
What is semi-metal, insulate and conduct electricity? Metalloids
What is a combination of 2 or more metals called? An alloy
Group 2 Of the periodic Table is called? Alkaline earth
Soft,shiny metals that conduct electricity are called? Lanthanides
Why don't noble gases conbine with other elements? Beacause there outermost shells are conplete with electrons.
What is the periodic Table arranged by? the # of each elements atomic mass.
What does the atomic # tell you? The # of protrons and nuetrons in the nucleus.
What does ductile mean? Capable of being pulled into long wires.
What is the ability to attract other metallic objects? Magnetic
What is group 1 on the periodic table called? Alkali metals
What does malleable mean? Capable of being pounded and hammered into different shapes.
What is a symbol? The abbrivation for the element on the periodic element.
Created by: Bella bella
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