Chapter 4 Atomic Structure Quiz Review

Greek philosopher that came up with the concept of "atomos"

• Democritus

• Dalton

• Thomson

• Schrodinger

What contribution did John Dalton make to atomic theory? 

• He discovered that every atom was positively charged. 
• He discovered that every element consisted of one type of atom that couldn't be divided. 
• He discovered that atoms had nuclei. 
• He discovered that atoms could be divided into smaller parts. 

Tags

NGSS.HS-PS1-7

Discovered the nucleus of the atom

• Dalton

• Thomson

• Rutherford

• Bohr

Which subatomic particle determines the identity of an element?

• protons

• neutrons

• electrons

Subatomic particle with a charge of 0

• neutron
• proton
• electron
• quark

In which way are protons and electrons the same in an atom?

• same mass

• same number of particles

• same charges

The mass number of an isotope is equal to the number of ______ in an atom.

• Protons
• Neutrons
• Protons + Neutrons
•  Electrons

In order for an atom to be neutral what has to be true?

• The atom has more protons than neutrons
• The atom has more neutrons than protons
• The atom has the same number of protons and neutrons
• The atom has the same number of protons and electrons

Most of the mass in an atom is made up of _____________________?

• protons and electrons
• protons and neutrons
• neutrons and electrons
• electrons and quarks

Tags

NGSS.MS-PS1-1

How is the number of neutrons in the nucleus of an atom calculated?

• Add the number of e- and p+ together
• Subtract the number of e- from p+
• Subtract the number of p+ from the mass number
• Add the mass number to the number of e-