Semester 2 Science - Chemistry

What two majors can Chemistry be said to be between?

• Physics and Mathematics

• Biology and Mathematics

• Biology and Physics

• Physics and Information Technology

All stuff is made from what?

• Cells

• Atoms

• Cell Nuclei

• Carbon

Who mathematically proved that atoms exist in 1905?

• Robert Brown

• Albert Einstein

• Dmitri Mendeleev

• Antoine Lavoisier

What is the Greek word and meaning of the word "atom"?

• Smallest

• Unbreakable

• Tiny

• Indivisible

What are the three key subatomic particles for atoms?

• Nucleus, Neutrons, Protons

• Quarks, Electrons, Protons

• Electrons, Neutrons, Nucleus,

• Neutrons, Protons, Electrons

The number of _______ in an element is its atomic number

• Neutrons

• Protons

• Electrons

• Quarks

What element has 79 protons?

• Praseodymium

• Silver

• Gold

• Carbon

What is the chemical symbol for silver?

• Au

• Ag

• Si

• Sv

According to the video, what is the "soul of the atom"?

• The atomic number

• The atomic weight

• The chemical symbol

• The electron

Relative Atomic Mass, for example for silver, isn't a whole number because..

• of electrons

• it averages the total nucleons of all of the isotopes

• Brownian motion changes the mass

• of quarks