Atomic Structure
Periodic Table Trends
Main Group Elements
Ions and Isotopes
Periodic Table Questions
100
What are the 3 subatomic particles in the atom?
Protons, Neutrons and Electrons
100
What type of elements are typically: shiny, good conductors of heat/electricity, malleable, and solids at room temperature?
Metals
100
Elements in group 1 are known as what?
List two properties of these elements.
Alkali Metals
1. Highly Reactive
2. Soft Metals
3. Low melting points
4. Malleable/Ductile
5. Good Conductors
100
Oxygen-17 and Oxygen-18 are two isotopes of oxygen. How many protons and neutrons are in each isotope of oxygen?
Oxygen-17 has 8 protons and 9 neutrons.
Oxygen-18 has 8 protons and 10 neutrons.
100
How many neutrons are in an atom of iron (Fe)?
30
200
What subatomic particle has a positive charge?
Proton
200
What does the period number that an element falls in tell you about an atom?
Number of electron energy levels
200
What are the odorless, colorless gases in group 18 known as?
Noble Gases
200
Metals in group 2 on the periodic table most commonly form which type of ion?
+2 (cation)
200
An isotope of chlorine has 17 protons and 19 neutrons. What is the mass number for this isotope of chlorine?
36
300
What two subatomic particles are found in the nucleus of an atom and make up the mass of an atom?
Protons and Neutrons
300
List two elements that have similar chemical properties.
Potassium and Rubidium OR Calcium and Strontium
300
What group are the Alkaline Earth Metals?
List two properties.
Group 2.
1. Shiny
2. Silvery-White
3. Low Melting Points/Low Boiling Points
4. Good conductors
5. Malleable/Ductile
300
A negatively-charged ion always has more:
a. protons than neutrons
b. neutrons than electrons
c. protons than electrons
d. electrons than protons
D. More electrons than protons
300
I have 6 valence electrons and am in period 2. Who am I?
Oxygen
400
What subatomic particle is found outside of the nucleus in different energy levels?
Electron
400
What does the group number tell you about an element?
1. # of valence electrons
2. Type of Ion Formed
400
Fluorine, Chlorine and Bromine are found in what main group?
Group 17; Halogens
400
A helium atom has 2 protons and 3 electrons. What could you do in order to make the helium atom neutral?
Remove an electron so that is has 2 protons and 2 electrons.
400
I am a noble gas and I am in period 4. Who am I?
Krypton
500
When an atom is neutral, the number of protons is equal to the number of __________________.
electrons
500
List the 6 metalloids.
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium
500
Why are the noble gases non-reactive?
They have a full outer energy shell. They are stable.
500
Why are group 17 atoms generally quite reactive?
They have 7 valence electrons and want to gain one more to become stable.
500
I am an Alkali Metal and I am in period 2. Who am I? How many valence electrons do I have? What type of ion do I form?
Lithium. 1 Valence Electron. +1 Cation