Structure of Atom
Atomic Numbers/Counting Atoms
Symbols
Valence Electrons/Chemical Bonds
Periodic Table
100
What is the postive particle in an atom?
protons
100
What is the number above the symbol on an element
atomic number
100
What is the name of symbol (C)
Carbon
100
How many valence electrons are part of this atom?
7 valence electrons
100
What do the groups of the periodic table tell us about the Elements atoms?
The number of valence electrons the element's atom has
200
What particle in atom has no charge
neutron
200
If potassium has 19 protons what's its atomic number
Atomic number: 19
200
What's Sodiums symbol on the Periodic Table
(Na)
200
How many valence electrons does this atom have?
1 valence electron
200
What group does the family of noble gases fall under
Group 8
300
The name of the middle of the atom is
nucleus
300
This element falls in group 2 period 5 what is it's atomic number?
38 Strontium (Sr)
300
Lead (Fe)
300
What bond does this image represent
Hydrogen Bond
300
How do you find neutrons of an element?
Subtract atomic mass with atomic number
(atomic mass-atomic number=neutons)
400
The particles that are found on energy levels and have a negative charge are known as
electrons
400
How many atoms does 4KClO₃ have
20 atoms
400
What are the the two symbols that water has as its chemical formula
Hydrogen (H) and Oxygen (O) = H2O
400
Which bond is this image representing
Ionic Bond
400
What does the periods in the periodic table of elements tell us
How many energy levels an element's atom has
500
What two particles in an atom need to be equal to balance the atom.
Protons and Electrons
500
What's the atomic mass of Radium?
Atomic Mass: 226
500
Which symbol is part of Group 8 and only has 2 valence electrons?
(He)Helium
500
What bonds are these examples representing
Covalent Bonds
500
How is the Periodic Table of Elements arranged
atomic number or protons amount