contestada

Which molecule contains the fewest number of atoms? (2 points)

a. SmCl3

b. RbNO3

c. H2SeO3

d. SiH4

Respuesta :

the answer is SmCl3 I got that answer from how many years I been studying

Answer: The correct option is, (a) [tex]SmCl_3[/tex]

Explanation:

(a) [tex]SmCl_3[/tex]

In this molecule, there are one number of samarium atom and three number of chlorine atoms. Hence, the total number of atoms present in [tex]SmCl_3[/tex] are, four.

(b) [tex]RbNO_3[/tex]

In this molecule, there are one number of rubidium atom, one number of nitrogen atom and three number of oxygen atoms. Hence, the total number of atoms present in [tex]RbNO_3[/tex] are, five.

(c) [tex]H_2SeO_3[/tex]

In this molecule, there are one number of selenium atom, two number of hydrogen atoms and three number of oxygen atoms. Hence, the total number of atoms present in [tex]H_2SeO_3[/tex] are, six.

(d) [tex]SiH_4[/tex]

In this molecule, there are one number of silicon atom and four number of hydrogen atoms. Hence, the total number of atoms present in [tex]SiH_4[/tex] are, five.

From the above we conclude that, [tex]SmCl_3[/tex] molecule contains the fewest number of atoms that is four than the other molecules.

Hence, the correct option is, (a) [tex]SmCl_3[/tex]