Chemistry-32 The periodic table

Front

Atoms of elements that are in the same group have the same number of

Back

valence electrons.

Front

Which of the following is a property of group 18 elements? malleable, brittleness, high electrical conductivity, unlikely to react with other elements

Back

unlikely to react with other elements

Front

Why are alkali metals extremely reactive?

Back

They have one valence electron that is easily removed to form a positive ion.

Front

What happens to elements in group 17 as atomic number increases?

Back

Both melting point and boiling point increase.

Front

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

Back

He, Ne, Ar, Kr, Xe, and Rn

Front

The _________________ are a small group of elements that have both metallic and nonmetallic properties.

Back

Metalloids

Front

What is the FAMILY name for GROUP 2 elements?

Back

Alkali Earth Metals

Front

Which element UNDER ATOMIC NUMBER 50 is artificially made? Options: Bromine, Tin, Hydrogen, Technetium

Back

Technetium

Front

Where in the Periodic Table is the metallic character of the elements greatest?

Back

A

Front

Back

B