Periodic Table Regents Questions

Front

What do all atoms of an element have in common?

Back

All atoms of an element have the same atomic number.

Front

What trend is observed in Period 2 elements from left to right?

Back

Electronegativity increases.

Front

Which two elements have similar chemical properties?

Back

Beryllium and magnesium have similar chemical properties.

Front

What is the density of nickel if a 26.7-gram sample has a volume of 3.00 cubic centimeters?

Back

Nickel has a density of 8.9 g/cm³.

Front

Which element has a higher melting point than rhenium?

Back

Tungsten has a higher melting point than rhenium.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

How does atomic mass change across a period?

Back

Atomic mass generally increases from left to right across a period.

Front

What is electronegativity?

Back

Electronegativity is the tendency of an atom to attract electrons in a chemical bond.

Front

What is the significance of the periodic table's groups?

Back

Elements in the same group have similar chemical properties due to having the same number of valence electrons.

Front

What is the relationship between ionization energy and electronegativity?

Back

Generally, as electronegativity increases, ionization energy also increases.