number of valence electrons
Atomic Number
are salamanders or snails closely related to an octupus
TRUE :)))
This is typically referred to as one atom. However to retain the bulk properties of the element you must have several hundred atoms.
Henry Moseley is the scientist who discovered that the atomic number rather than the atomic weight is more responsible for the properties of an element.
You don't need to alter the identity of the substance to determine its solubility. See the Related Questions link the left of this answer for more information about physical vs. chemical properties.
The atomic number
atomic mass
its atomic number There are there properties of an element to mass. The three properties are density, melting and electrical.
the number of electrons that fill the outer shell
Reptiles are more closely related to mammals.
are salamanders or snails closely related to an octupus
the grasshopper is more closely related to the housefly.
No element contains more than one element.
The properties of nonmetals also tend to vary more from and element to element than do the properties of the metals
A cod is much more closely related to a shark than to a human.
Deer and cattle are more closely related than goats and cattle.
Actually, echinoderms are more closely related to humans than molluscs.