The electrons are in the...
Nucleus
Outer shells
The neutrons are in the ...
Outershells
Select the true statements...
Protons are positve
Protons are negative
Protons are neutral
Electrons are Positve
Electrons are negaitve
Electrons are neutral
Neutrons are positive
Neutrons are negative
Neutrons are neutral
Dmitri Mendeleev arranged elements in order of atomic mass in 1886
Elements of similar properties are
In the same group
In the same period
Best friends
Atoms of same element: same number protons in nucleus
Isotopes are:
Atoms of the same element, different numbers of neutrons in nucleus. Have same number of protons + electrons, same chemical properties, different mas
Atoms of the same elements, same numbers of neutrons in nucleus. Have different number of protons + electrons, same chemical properties, different mas
Atoms of the same element, same numbers of neutrons in nucleus. Have same number of protons + electrons, same chemical properties, different mas
Bitte warte - es wird geladen…