M5: The Periodic Table

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Why were there blank spaces left in Mendeleev's periodic table?                                              

• He didn't know what to put there.
•  Undiscovered elements not yet known.
• Multiple elements could have fit
• He forgot to add the elements in.

Which of these grouping of elements could have the characteristic of brittle?

• Metal
• Nonmetal

Tags

NGSS.HS-PS1-1

Which of the following is a good conductor of heat?

• Metal
• Nonmetal
• Metalloid

Tags

NGSS.HS-PS3-4

Some characteristics of a metal are that it is malleable and ductile.

• TRUE
• FALSE

Iron is a good conductor, malleable and magnetic. What type of element is Iron? 

• Metal
• Nonmetal
• Metalloid
• Pretty

Tags

NGSS.HS-PS1-1

Which elements are to the LOWER LEFT of the staircase?

• metals

• nonmetals

• metalloids

Which elements are colored red?

• nonmetals

• metals

• metalloids

Tags

NGSS.HS-PS1-1

Is oxygen metal or nonmetal?

• metal
• nonmetal

Tags

NGSS.HS-PS1-1

Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 

• Metal
• Nonmetal
• Metalloid
• Pretty

Tags

NGSS.HS-PS1-1