Which molecule contains the fewest number of atoms? (2 points) a. smcl3 b. rbno3 c. h2seo3 d. sih4

The correct option is, (a)

Explanation:

(a)

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

(b)

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 are, five.

(c)

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 are, six.

(d)

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

From the above we conclude that, molecule contains the fewest number of atoms that is four than the other molecules.

Hence, the correct option is, (a)

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).