Atomic Structure
Periodic Table
Subatomic Particles
Nuclear Chemistry
Ions & Isotopes
Bonus Challenge
100
What subatomic particle determines an element's identity?
Protons
100
What is the group number for Lead (Pb) on the periodic table?
4A
100
What is the charge of a proton?
+1
100
What type of reaction powers the Sun?
Nuclear Fusion
100
What happens when an atom loses an electron?
It becomes a cation
100
What’s the most abundant element in the universe?
Hydrogen
200
What is the densest part of an atom?
Nucleus
200
Elements in the same group have the same number of what?
Valence electrons
200
Which subatomic particle is neutral?
Neutron
200
What type of reaction occurs in nuclear power plants?
Nuclear Fission
200
What happens when an atom gains an electron
It becomes an anion.
200
What are elements along the periodic table’s "zigzag line" called?
Metalloids
300
Which model of the atom places electrons in orbitals based on energy level?
Bohr Model
300
Silicon is in the same column as Carbon. How many valence electrons does it have?
4
300
What two subatomic particles contribute to atomic mass?
Protons and neutrons
300
Carbon-14 is used for dating organic material. How many protons and neutrons does it have?
Carbon-14 has 6 protons and 8 neutrons
300
Why don’t noble gases form ions?
They already have a full valence shell.
300
What are good conductors of heat & electricity?
Metals
400
What is the atomic number of an element?
The number of protons in an atom
400
What do Oxygen, Sulfur, and Selenium have in common?
They all have 6 valence electrons
400
In an electrically neutral atom, the number of protons always equals the number of electrons. What would happen if an atom had more protons than electrons?
It would become a positively charged ion (cation) because there would be an excess of positive charge.
400
A new element has a half-life of 1 second. If you start with 80 atoms, how many remain after 4 seconds?
Daily Double!
5 atoms remain
400
What does isotope notation indicate?
The number of protons and neutrons in an atom.
400
Which element has the smallest atomic number?
Hydrogen
500
In an atom with an atomic number of 37 and a charge of +1, how many electrons does it have?
36
500
If an element is in Period 3, Group 1, what type of element is it?
Daily Double!
Alkali metal - Sodium (Na)
500
Rank protons, neutrons, and electrons from most massive to least massive.
Neutron > Proton > Electron
500
In Beta decay, what does a neutron transform into?
A proton & a fast-moving electron
500
Fill in the missing values: A neutral magnesium atom has __ protons, __ neutrons, and __ electrons.
12 protons, 12 neutrons, and 12 electrons
500
Draw a Lewis dot structure for Fluorine.
