Lesson 1: Development of the Modern Periodic Table.

Which of the following is the correct definition for group/family?

• columns of elements on the periodic table.

• rows of elements on the periodic table

• all the elements on the right side of the periodic table.

• all the elements that conduct electricity and heat.

• the metalloids

You have a sample of an unknown element. After conducting several tests, you record the following data:

Conducts heat

Conducts electricity

Shinny luster

Malleable

• properties of noble gases

• Properties of halogens

• Properties of metals

• Properties of nonmetals

• Properties of metalloids

Which of the following is the correct definition for a period?

• columns of elements on the periodic table.

• rows of elements on the periodic table

• all the elements on the right side of the periodic table.

• all the elements that conduct electricity and heat.

• the metalloids

You have a sample of an unknown element. After conducting several tests, you record the following data:

Conducts a small amount of heat

Conducts a low level of electricity

Shinny luster

brittle

• properties of noble gases

• Properties of halogens

• Properties of metals

• Properties of nonmetals

• Properties of metalloids

Using the periodic table provided, which of the letter(s) represent the noble gases?

• S,C

• Q,D,R,P

• P,F,M,L

• F,M,L

• K

Which of the elements on the periodic table provided would Have the following properties.

Poor conductor's of heat.

Poor conductors of electricity

brittle

dull luster

• S,C

• Q,D,R,P

• P,F,M,L

• F,M,L

• K,F

Which of the elements on the periodic table provided would be in the same period?

• S,C

• Q,D,R,P

• K,V

• F,M,L

• A,Q,R,P,L

Which of the element(s) on the periodic table provided would be in the alkali metal family?

• S,C

• Q,D,R,P

• K,V

• F,M,L

• A,Q,R,P,L

From the list below, select all of the properties that define the alkali metal family.

• dull luster

• Hard and dense

• reacts violently with water

• soft and not dense

• nonreactive with water

Based on the periodic table provided, how would you classify the following set of elements: A,G, F, K, D, N, M, P, X and E?

• Transition elements

• Metals

• Inner transition elements

• Representative elements

• Nonmetals

Tags

NGSS.MS-PS1-1