Chemical Bonds -Ionic vs Covalent

What do electrons in an atom's outermost shell participate in?

• None of the above

• Becoming core electrons

• Filling the nucleus

• Forming chemical bonds

What are the electrons in the inner shells of an atom commonly referred to as?

• Valence electrons

• Nucleus electrons

• Core electrons

• Shell electrons

How can atoms become more stable?

• By becoming non-reactive

• By losing or attracting electrons to fill their outer shell

• By increasing the number of protons

• By moving to a different shell

Why are elements with completely filled outer shells mostly non-reactive?

• Because they can easily lose their valence electrons

• Because they can't accept any more electrons and losing all of their valence electrons requires too much energy

• Because they are gases

• Because they have no valence electrons

What are the two main types of chemical bonds?

• Metallic and covalent bonds

• Ionic and covalent bonds

• Covalent and hydrogen bonds

• Ionic and metallic bonds

Electrons in an atom's inner shells are commonly referred to as

Answer explanation

core electrons

Electrons in the outermost shell of an atom are called ______ ?

Electrons in the outermost shell of an atom are called _________?

The innermost shell of any atom can hold a maximum of ​ (a)   electrons and the next shell can hold up to ​ (b)   electrons. ​

• two
• eight

True or False ?

Core electrons don't participate in chemical bonds.

• True

• False