atomic number 40, zirconium, Zr - a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly ...

Zirconium is a metal in group IVB of the periodic table with atomic number 40, an atomic weight of 91.22, and a density of 6.49 Mg/m 3. Its melting point is 1852 C, and it boils at 3580 C. The ...

Atomic number 14, atomic weight 28.086. Nickel (Ni): Nickel is a hard, metallic element that found in igneous rocks. Without nickel, stainless steel would be less resistant to heat and corrosion.

The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius. Many scientists worked on the ...

Carbon atoms have six protons, so its atomic number is six. Elements also each have a unique atomic mass. The atom's mass primarily comes from the protons and neutrons in the atom's nucleus.

They will also be able to explain the meaning of atomic number and atomic mass. About this Lesson. Lessons 2 and 3 both use the 20 sheets of atom description cards – one sheet for each element.

Atomic Number and Atomic Mass: Get here the easy notes on atomic number and atomic mass for all the first 30 elements. Know how to calculate atomic mass using atomic number.