Chem Final

Choose all physical properties

• Solubility

• Flammability

• Color

• Freezing point

• Toxic

Properties of a substance that describes how that substance’s chemical composition will change given a specific set of conditions

• Chemical Properties

• Physical Properties

Heterogeneous mixtures are made up of two or more substances that appear as one

• True

• Flase

Avogadros number is :

• (10)^25

• 6.022x10^24

• 6.022x10^-23

• 6.022x10^23

Which of these quantum numbers describes the main shell

• Principal quantum number

• Angular momentum quantum number

• Magnetic quantum number

• Spin quantum number

According to the Aufabu principle, an electron occupies the highest energy orbital that can receive it

• True

• False

Which term best describes the energy required to remove an electron from an atom

• Electron affinity

• Electronegativity

• Ionization energy

• Electron energy

Which atoms will have greater electronegativity

• Small atoms with small number of protons

• Small atoms with big number of protons

• Large atoms with small number of protons

• Large atoms with large number of protons

I am like a proton, I have a mass but no electrical charge, who am I ?

• Electron

• Isotope

• Neutron

• Atomic mass unit

Which term Describes the ability of an atom in a chemical compound to attract electrons from diffrent atoms

• Electron affinity

• Electronegativity

• Ionization energy

• Electron attractification