Isotopes of an element differ from each other in the number of
(a) Protons in the nucleus
(b) Neutrons in the nucleus
(c) Electrons in the outer shells
(d) a, b, and c are all correct
검증된 단계별 안내
Isotopes of an element differ from each other in the number of
(a) Protons in the nucleus
(b) Neutrons in the nucleus
(c) Electrons in the outer shells
(d) a, b, and c are all correct
The subatomic particle with the least mass
(a) Carries a negative charge
(b) Carries a positive charge
(c) Plays no part in the atom's chemical reactions
(d) Is found only in the nucleus
The number and arrangement of electrons in an atom's outer energy level (valence shell) determine the atom's
(a) Atomic weight
(b) Atomic number
(c) Molecular weight
(d) Chemical properties
An oxygen atom has eight protons.
(b) How many more electrons will it take to fill the outermost energy level?
An oxygen atom has eight protons.
(a) Sketch in the arrangement of electrons around the nucleus of the oxygen atom in the following diagram.