Which statement about the isotopes of an element is correct?A. They have the same mass number.B. They have a different atomic number.C. They have the same chemical properties.D. They are located in different places in the periodic table

Which statement is correct about the isotopes of an element?A. They have the same mass numberB. They have the same electron arrangementC. They have more protons than neutronsD. They have the same numbers of protons and neutrons

Two atoms are isotopes if they havea) different atomic numbers.b) the same mass number, but different atomic numbers.c) the same number of protons and neutrons.d) the same number of electrons, but a different number of neutrons.e) the same atomic number, but a different mass number.

Which statement is true?Isotopes of a given element have very similar chemical properties.Isotopes are atoms of different elements which have the same mass.Isotopes of a given element have equal numbers of neutrons.Isotopes are atoms that have gained or lost electrons.Isotopes of a given element have equal numbers of protons and neutrons.

Isotopes of an element have the same number ofA. protons and electrons.B. protons and neutrons.C. neutrons and electrons.D. protons, neutrons and electrons

Which statement about the periodic table is correct?A.     The elements with atomic numbers 8, 16 and 34 have the same number of main energy levels.B.     The elements with atomic numbers 8, 9 and 10 have similar chemical properties.C.     The elements with atomic numbers 20, 21 and 22 are in the same group.D.     The elements with atomic numbers 20, 38 and 56 have the same number of electrons in their outer energy level.