2. Atoms of 160, 170, and 180 have the same number of

Have the same number of protons but a different number of neutrons

Further explanation

The elements in nature have several types of isotopes

Isotopes are atoms whose no-atom has the same number of protons while still having a different number of neutrons.

So Isotopes are elements that have the same Atomic Number (Proton)

SO the Three Common Isotopes Of Oxygen :

₈¹⁶O, ₈¹⁷O, and ₈¹⁸O have :

1. The same number of protons = atomic number = 8

2. Have a different number of neutrons :(neutrons= mass number-atomic number)

₈¹⁶O : neutron = 16-8=8

₈¹⁷O : neutron = 17-8=9

₈¹⁸O : neutron = 18-8=10

The correct answer is "atomic weight".

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.