Atoms
Elements/PT
Atomic Theories
Chemical Bonds
Chemical Equations
100
What is the tiny region in the center of the atom called? Where protons and neutrons are clustered.
What is the nucleus?
100
How many periods are on the periodic table? They are located in horizontal rows.
What is 7?
100
This scientist found that atoms consisted of negative charges clustered throughout a ball of positive charge.
Who is J.J. Thomson?
100
What are the three ways atoms bond?
What are sharing, losing and gaining electrons?
100
Balance the following equation: ____Ca + ___O2 --> ___CaO
2Ca + O2 --> 2CaO
200
What are located in energy levels around the nucleus?
What are electrons?
200
There are how many groups on the periodic table? They are located in vertical columns.
What is 18?
200
This scientists discovered the neutron.
Who is James Chadwick?
200
What type of bond involves sharing electrons?
What are covalent bonds?
200
Balance the following equation: ___N2 + ___H2 --> NH3
N2 + 3H2 --> 2NH3
300
Neutrons have what charge?
What is no charge?
300
Families 3-12 on the periodic table are called what?
What are transition metals?
300
This scientist claimed atoms cannot be created or destroyed in any chemical change.
Who is John Dalton?
300
What type of bond involves gaining or losing electrons?
What is ionic?
300
Identify the following equation as one type of reaction: Al2S3 --> 2Al + 3S
What is decomposition?
400
There are always the same number of what ________ and ________ in an atom.
What are protons and electrons?
400
The atomic number tells you how many _________ are in an atom.
What are protons?
400
This model proposed that electrons with higher energy are held more loosely.
What is the cloud model?
400
The charged particles formed when atoms gain or lose electrons are called what?
What are ions?
400
Identify the following equation as one type of reaction: Zn + S --> ZnS
What is synthesis?
500
What is the maximum amount of electrons in the 6th energy level?
What is 72?
500
The atomic mass is the total amount of ___________ and __________ in an atom.
What are protons and neutrons?
500
This scientist used the foil experiment to find that like charges repel each other. Found the nucleus.
Who is Ernest Rutherford?
500
Chemical bonding is the joining of new atoms to form what?
What is new substances?
500
Identify the following equation as one type of reaction: Cl2 + 2KBr --> 2KCl + Br2
What is single-displacement?
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