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Metals
Nonmetals
Metalloids
Periodic Table
Periodic Table
100
What does ductile mean?
What is The ability to be formed into wires
100
What does brittle mean?
What is the ability to break easily
100
Where are the metalloids located on the periodic table
What is along the zigzag line
100
Mendeleev arranged the elements in order of what?
What is Increasing atomic mass
100
How did Bohr describe the atomic model
What is like an onion with layers, or the planets orbiting the sun
200
Define malleability
What is the ability for metals to be hammered into sheets
200
Nonmetals are less ____________than metals
What is reactive
200
Define metalloid
What is an element that has properties of a metal and a nonmetal
200
The atomic number is based on the
What is the number of protons
200
The modern periodic table is based on
What is increasing atomic number
300
Name one more property of metals
What is the ability to conduct electricity, good thermal conductors
300
True or false: Nonmetals are semiconductors
What is false
300
WHat is a semiconductor
What is an element that can conduct electricity under certain conditions
300
What does an elements location on the periodic table tell you about the element
What is it's properties
300
reactivity_____________ as you move from left to right across the periodic table
What is decreases
400
Metals are _____________at room temperature
What is Solids
400
Nonmetals are mostly ____________ at room temperature
What is gases
400
How many metalloids are there on the periodic table
What is 7
400
The elements that normally do not form compounds are the
What is Noble Gases
400
Horizontal rows in the periodic table are called
What is periods
500
Where are the most reactive elements found on the periodic table
What is group 1. The farthest column on the left.
500
Name two nonmetals from the periodic table
What is carbon, nitrogen, oxygen
500
Name two of the metalloids
What is arsenic, silicon, boron
500
Where are the electrons located in an atom?
What is a cloud around the atom
500
Why is hydrogen by itself on the periodic table?
What is it has its own unique properties