Elements
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Mendeleev
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100
Which particles in atoms have a negative electric charge?
What is an electron
100
A family on the periodic table can up located by looking which way?
What is up and down or vertical
100
Which term means that metals can be pulled into thin strands or wires?
What is ductile
100
Mendeleev created the first period table by arranging elements in order of _________?
What is increasing atomic mass
100
The elements that do not ordinarily form compounds are?
What are inert gases/Noble gases
200
In an atom, the number of protons equals the number of _________.?
What is a neutron.
200
Which group of elements shares characteristics with both metals and nonmetals?
What is a semimetal
200
Most metals are not _________?
What is liquid at room temperature. Bonus* Which metal is liquid at room temperature?
200
Dimitri Mendeleev is contributed as being what in relation to the periodic table?
What is The Father of the Periodic Table
200
How did chemists change Mendeleev's periodic table in the early 1900's?
What is atomic number not atomic mass.
300
Which part of an atom is said to have no charge?
What is a neutron
300
What is another name for a family on the periodic table?
What is a group
300
In the periodic table, the most reactive metals are found in?
What is Group 1, the first column on the left
300
Each element is given a specific _______ that usually consists of one or two letters.
What is an Element Symbol
300
If you have the mass number and subtract the atomic number from it you can find out?
What is the number of neutrons?
400
Positively charged particles in an atom's nucleus are called?
What is a proton
400
Which group contains elements with two valence electrons?
What is Group 2
400
Which group contains the most elements?
What are metals.
400
In the periodic table, atoms are arranged from left to right and from top to bottom in order of increasing?
What is the atomic number
400
The horizontal rows in the periodic table are known as?
What is a period
500
Protons and neutrons are found in this part of the atom?
What is the nucleus
500
Elements in a column/Family on the periodic table have what in common?
What are similar characteristics
500
What is another way of saying a metal has a high shine?
What is luster
500
Mendeleev arranged the elements in order or increasing atomic mass and grouped them according to?
What are properties that repeat in patterns.
500
Mendeleev was able to predict the ________ of several elements that had not yet been discovered?
What is properties
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