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100
Where do you find the metals on the periodic table?
Starting from the left and taking up most of the table.
100
What are 3 properties of metals?
Malleability, Magnetic, Conductivity, Ductility, Shinyness, Hardness and usually share valence electrons.
100
What happens to density as you move down the periodic table?
It increases
100
What is the atomic number of Iodine?
Iodine's atomic number is 53.
100
What type of element is Gallium?
Metal
200
Where can you find the nonmetals on the periodic table?
on the right side.
200
Which type of element usually gain valence electrons?
nonmetals.
200
What happens to the melting point of metals as you move down the periodic table?
Melting point decreases
200
What is the symbol for Potassium?
K
200
What type of element is Radon?
Nonmetal
300
Where can you find the metalloids on the periodic table?
Between the metals and nonmetals.
300
Which element can be classified as a metal or nonmental depending on how it reacts with a substance?
Hydrogen
300
What happens to the melting point of nonmetals as you move down the periodic table?
Melting point of nonmetals increases
300
What is the name of the element with the atomic mass of 207.2?
Lead
300
What type of element is Silicon?
Metalloid
400
How many groups are on the periodic table?
18 groups or families
400
Why are metalloids used in transistors, semiconductors and computers?
Because metalloids can conduct electricity under certain conditions and/or have varying ability to conduct electricity.
400
What happens to the reactivity of metals as you move right on the periodic table?
Reactivity of metals decreases
400
What is the atomic mass of Hg?
200.59
400
Which element has the lowest density? Neon, Argon or Krypton or Xenon?
Neon
500
How many periods are on the periodic table?
7 periods
500
Snce they are stable and almost never react with other substances, what are the elements in Group 18 known as?
Noble gases
500
What happens to the reactivity of nonmetals as you move right on the periodic table?
Reactivity of nonmetals increases
500
How many protons does Argon have?
18
500
Which element has the highest melting point? Copper, Silver or Gold
Copper