chemical bonds

Because calcium cannot be separated by simple physical or chemical changes into two or more new and different substances, it is classified as

• An Element

• A mixture

• A compound

• A solution

Which part of the atom is responsible for chemical bonding?

• Core Electrons

• Valence Electrons

• Protons

• Neutrons

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

What are the names of the atoms in ammonia, NH₃?

• Nitrogen & Hydrogen
• Neon & Helium
• Sodium & Hydrogen
• Nitrogen & Mercury

An _______ is a type of atom with the same number of protons.

• element

• mixture

• compound

• molecule

In the molecule of C₁H₄ there are _______Hydrogen atoms, and______Carbon atom.

• 4, 1
• 1, 4

Consider the compound CaCl₂. Both elements are Non-metals. What type of compound does it represent?

• Ionic
• Covalent

What is similar about ionic and covalent bonds?

• Both involve the combining of atoms to form compounds and/or molecules

• Both involve the combining of atoms to form atoms and/or molecules

How many valence electrons does Fluorine have?

• 7

• 6

• 5

• 8

What is different about ionic and covalent bonds?

• Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

• Ionic bonds involve the sharing of electrons, while covalent bonds involve the transfer of electrons.

A chemical bond between oppositely charged ions.

• Covalent bonds

• Ionic Bonds

• Ion

• Compound