Quiz Review: Big Bang thru Heavier Atoms

Ready for a cosmic journey? Here's your question: What's the most widely accepted theory about how our universe came into existence?

• Is it the String Theory?

• Or, could it be the Big Bang Theory?

• Maybe it's the Quantum Theory?

• Or is it the Relativity Theory?

Imagine you're a tiny particle during the Big Bang. What would happen if you, a matter, bumped into your opposite, an antimatter?

• You'd both annihilate each other

• You'd both form stable atoms

• You'd both transform into photons

• You'd both create a singularity

What were the original two elements in our universe?

• Hydrogen and Lithium

• Helium and Oxygen

• Helium and Hydrogen

• None of the above

The nucleus of an atom contains which subatomic particles?

• protons and electrons

• protons and neutrons

• electrons and neutrons

• protons, electrons, and neutrons

Typically in an atom, which two subatomic particles are equal in number?

• protons and neutrons

• all subatomic particles are equal in number

• neutrons and electrons

• protons and electrons

Which subatomic particle is counted to determine the type of element the atom represents?

• proton

• neutron

• electron

• boron

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

How many neutron are in the atom "K"?

• 29

• 19

• 58

• 20

Adding or subtracting neutrons (charge = 0, mass = 1) makes the element change into an...

• ion
• mixture
• isotope
• neutral atom

The atomic mass is equal to _.

• the number of protons only
• the number of neutrons only
• the total number of protons and neutrons
• the number of protons, neutrons, and electrons.