Front

What is Kr?

Back

Krypton

Front

Atomic number of Ga?

Back

31

Front

30-29= what element?

Lawrence

,

Lead

,

Hydrogen

,

Mercury

Back

Hydrogen

Front

3rd element? Options: Potassium, Arsenic, Xenon, Lithium

Back

Lithium

Front

How many periods or rows on the periodic table?

Back

7

Front

Which element has the highest electronegativity?

Back

Flourine

Front

Positive particle?

Back

Protons

Front

In the modern periodic table, elements are arranged by: atomic mass, atomic number, valence electrons, number of isotopes

Back

atomic number

Front

Where is most of the mass of an atom found?

Back

nucleus