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3 years ago

An atom has 18 protons, 18 electrons, and 20 neutrons. This atom has _____.

Chemistry

5 answers:

Nookie1986 [14]3 years ago

8 0

an atom that has 18 protons, 18 neutrons and 20 neutrons. This atom has mass number of 38

mass number is calculated as number of protons + number on neutrons

therefore the mass number of the atom = 18+20= 38

Since the atom has a electronic configuration of 2.8.8,the atom cannot be negatively or positively charged because it is stable.

The atomic number of the atom is 18 since atomic number is equal to number of protons

kap26 [50]3 years ago

8 0

C.)Mass number of 38

Dmitry_Shevchenko [17]3 years ago

8 0

an atom that has 18 protons, 18 neutrons and 20 neutrons. This atom has mass number of 38

mass number is calculated as number of protons + number on neutrons

therefore the mass number of the atom = 18+20= 38

Since the atom has a electronic configuration of 2.8.8,the atom cannot be negatively or positively charged because it is stable.

The atomic number of the atom is 18 since atomic number is equal to number of protons

Lera25 [3.4K]3 years ago

4 0

an atom that has 18 protons, 18 neutrons and 20 neutrons. This atom has mass number of 38

mass number is calculated as number of protons + number on neutrons

therefore the mass number of the atom = 18+20= 38

Since the atom has a electronic configuration of 2.8.8,the atom cannot be negatively or positively charged because it is stable.

The atomic number of the atom is 18 since atomic number is equal to number of protons

Yakvenalex [24]3 years ago

3 0

an atom that has 18 protons, 18 neutrons and 20 neutrons. This atom has mass number of 38

mass number is calculated as number of protons + number on neutrons

therefore the mass number of the atom = 18+20= 38

Since the atom has a electronic configuration of 2.8.8,the atom cannot be negatively or positively charged because it is stable.

The atomic number of the atom is 18 since atomic number is equal to number of protons

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2 years ago

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3 years ago

Rank the following molecules from highest to lowest boiling point: CO2, H2S, NaF, NH3. Explain your ranking using IMF’s.

qaws [65]

Answer:

NaF>NH3>H2S>CO2

Explanation:

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