About 75 metals.
hi there It depends really, there are many elements on the periodic table that are split into groups, 8 groups to be exact (0-7), which consist of reactive metals, transition metals, other metals, non-metals and noble gases. on every element there is the mass number which is the total number of protons and neutrons and then there is the atomic number which is the number of protons and its the same as the number of electrons. hope this helps :)
all are non metals
Sodium is a metal, having atomic number 11.
Group number corresponds to the number of valence electrons of a single atom of the element.
About 75 metals.
Non metals
Metals, non metals and metaloids (which have some of the properties of both metals and non metals).
They are in between the metals and non metals
Non metals
non metals
all are non metals
hi there It depends really, there are many elements on the periodic table that are split into groups, 8 groups to be exact (0-7), which consist of reactive metals, transition metals, other metals, non-metals and noble gases. on every element there is the mass number which is the total number of protons and neutrons and then there is the atomic number which is the number of protons and its the same as the number of electrons. hope this helps :)
The number of non metals (excepting metalloids) in the periodic table of Mendeleev is 17; several other elements are sometimes consideredas non metals.
Sodium is a metal, having atomic number 11.
non metals
Second period has most non-metals.It has total five non-metals.