CHM1011 PASS Week 2

Who was considered the creator of the periodic table

• Marie Curie

• Dmitri Mendeleev

• Albert Einstein

• Harry Styles

Which elements are considered the most stable?

• Nobel Gases

• Transition Metals

• Actinoids

• Halogens

The first electron shell in an atom holds 8 electrons

• True

• False

Determine the Bond:

• Ionic

• Covalent

• Intramolecular

• Intermolecular

Which pair of molecules can form an Ionic bond

• Cl^- and N

• Na⁺ and Ca²⁺

• F^- and I^-

• Ca²⁺ and CO3^2-

Select the false statement

• Covalent bonds involve sharing of electrons

• Ionic bonds occur between a cation and anion

• Ionic bonds are weaker than covalent bonds

• Covalent bond aims to fulfil the octet rule

Name the Molecule

• Dipotassium pentaoxide

• Pentaoxygen diphosphorus

• Diphosphorus pentaoxide

• Pentaoxygen dipotassium

What is being arrowed?

• Valence electron

• Proton

• core electron

• Nucleus