Chemistry Review -A

Which of the following  describes most of the elements on the far right side of the periodic table?

• Very high melting point
• Gas state at room temperature
• Good conductor of electric and thermal energy
• Extremely brittle solid at room temperature

Which best describes elements of the same column (group/family) on the periodic table?

• All the elements in the same column have the same size atoms.
• The elements of the same column have the same atomic number.
• The elements of the same column have similar chemical properties.
• The elements of the same column are found naturally in the same chemical state.

Which elements are the least reactive on the periodic table?

• halogens
• noble gases
• alkali metals
• alkaline earth metals

(Use the periodic table to observe the element's atomic masses)  Which of the following elements would sink when placed in water?

• Gold
• Silver
• Copper

A chemist is looking for an element that reacts very similarly to lithium.   Which element would be the best choice?

• gold
• neon
• flourine
• sodium

How are elements organized on the modern periodic table?

• by the date they were discovered
• by increasing atomic mass
• by increasing atomic number
• by alphabetical order of the element's symbol

Louisa discovered that an unknown element reacts really quickly with an alkali metal.  This element is probably is probably which group?

• alkali metals
• alkaline earth metals
• halogens
• noble gases

Jaleel discovered that an element reacts really quickly with elements from the alkaline earth metals.  Which group is this element probably from?

• Group 13
• Group 14
• Group 15
• Group 16

If an element has the physical properties of magnetism, luster, malleability, and ductility, it would most likely be a...?

• Metal
• Nonmetal
• Metalloid
• Semiconductor

Which element in period 3 is known for being a highly reactive metal?

• sulfur
• argon
• scandium
• sodium