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Atomic Structure
Elements & Atoms
Periodic Table Basics
Groups & Families
Miscellaneous
100
This is the center of the atom.
What is the nucleus?
100
Atoms are the smallest part of an _____________.
What is an element?
100
He is the father of the periodic table.
Who is Dimitri Mendeleev?
100
Groups and Families are __________ or up and down on the periodic table.
What is vertical?
100
Mendeleev's periodic table had to be rearranged slightly because some of the elements didn't fit in the right spots. The difference between his table and the modern table is...
What is his table was arranged by atomic mass and the modern table is arranged by atomic number?
200
These two parts of the atom have opposite charges and keep the atom "balanced."
What is the proton and the electron?
200
An element's atom is identified by its ___________.
What is the atomic number or number of protons?
200
The elements on the periodic table are usually categorized as ________, ________ or _________.
What is metals, nonmetals, and metalloids.
200
This group of elements have a full valence shell and do not react with any other elements.
What is the noble gases?
200
The category of element that has both properties of metals and nonmetals.
What is the metalloids?
300
This is the part of the atom that has no charge. It is located ____________.
What is the neutron and nucleus?
300
What does the symbol He stand for?
What is helium?
300
These are the four things each of the periodic squares tells you about an element.
What is Chemical Symbol, Element Name, Atomic Number, Atomic Mass?
300
Most of the periodic table is made of this group.
What is the transition metals?
300
The nonmetals are located on the _________ side of the staircase line on the periodic table.
What is right?
400

Who created some of the early atomic models?

Who are Democritus, Thomson, Rutherford, and Bohr?

400
Use the periodic table to find how many protons, neutrons, and electrons are in Potassium (K).
What is 19 protons, 19 electrons, and 20 neutrons?
400
Elements in a family/group are in the same column because they __________.
What is share characteristics?
400

How do you decide the number of valence electrons for each element?

What is counting the number of columns when excluding the transition elements?

400

Why do we use the electron cloud model to model the atom?

What are electrons being impossible to describe in location?

500
Atoms are able to bond because of the ___________ electrons.
What is valence?
500

The number with a decimal in the periodic square stands for the _____.

What is the atomic mass?

500
As the characteristics of the elements repeat __________ are formed.
What is a period?
500

Hydrogen does not really belong to Group 1 the Alkali Metals. It is put with that group because...

What is it has only one valence electron but it doesn't share characteristics with any other family on the periodic table?

500

Most of the new elements discovered on the periodic table are _______________.

What is synthesized/lab-made?