The Genius of Mendeleev's Periodic Table

Label the table

a

b

c

d

e

metalloids

transition metals

noble gases

alkali metals

Nonmetals

What is the term for the 8-ish elements that sit on the "staircase" on the periodic table and have properties that are "in between"?

• Metals

• Metalloids

• Nonmetals

• Androids

Vertical columns on the periodic table are known as (2 possible answers)

• periods

• families

• groups

• metalloids

What country was Mendeleev from AND when did he publish his periodic table?

• Sweden, 1972

• Germany, 1772

• Russia, 1872

• France, 1672

What was unique about Mendeleev's periodic table compared to others?

• He organized everything by reactivity

• He organized everything by increasing mass

• He wrote the names of the elements on cards

• He left blank spaces for undiscovered elements

What determines the order of elements on today's periodic table?

• increasing atomic mass

• decreasing atomic mass

• increasing atomic number

• decreasing atomic number

Look at the periodic table. Which list of elements forms a group on the periodic table?

• Li, Be, B, C, N, O, F, and Ne

• He, Ne, Ar, Kr, Xe, and Rn

• B, Si, As, Te, and At

• Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Ni, and Zd

Using the periodic table, which element is a metalloid?

• carbon

• silicon

• oxygen

• aluminum

The table above lists some information about certain elements in group 17. Which statement describes what happens to these elements as atomic number increases?

• Both melting point and boiling point decrease.

• Melting point increases and boiling point decreases.

• Melting point decreases and boiling point increases.

• Both melting point and boiling point increase.

What is one similarity among elements in a group?

• atomic mass

• atomic weight

• chemical properties

• practical uses