Review: metallic, ionic, covalent

Elements on the LEFT side of the periodic table will most likely form:

• Positive ions
• Negative ions
• Neutral Ions
• None of these

A mixture of two or more metals is called:

• mixture
• solution
• compound
• alloy

What is the basis of a metallic bond?

• the attraction of neutral metal atoms.
• the attraction between protons and neutrons.
• the attraction between positive metal ions and interlocking electrons.
• the attraction between positive metal ions and free floating electrons.

Why are metals malleable?

• They are shiny

• The electrons are held tightly within the lattice structure making it strong

• The electrons are delocalized and able to move between the atoms

• The electrons are shared between two metal ions and this holds the atoms together

Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?

• There are 2 bromide ions for every magnesium ion
• Bromide has a 2- charge
• Bromide has a 2+ charge
• There are 2 magnesium ions to every bromide ion

Which of the following pairs of elements would NOT react to form an IONIC compound?

• sulfur and phosphorus

• sodium and iodine

• iron and oxygen

• aluminum and bromine

Tags

NGSS.MS-PS1-2

Ionic compounds are ordinarily found as

• plasma
• liquids
• gasses
• crystalline solids 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How are compounds with metallic bonds similar to ionic compounds?

• Both tend to have double and triple bonds.

• Both tend to have low boiling point

• Both tend to have poor conductivity.

• Both tend to have high melting points.

How are compounds with metallic bonds similar to ionic compounds?

• They both have repeating structures

• They both have high mp and bp

• Both tend to have poor conductivity.

• Both tend to have low melting points.

Nonmetals tend to form ions by

• destroying electrons

• gaining electrons

• losing electrons

• sharing electrons