How many protons in an element that has an atomic number of 12 an atomic mass of 23 and a charge of 2+?

If the atomic mass is 23 , and there are 12 neutrons, there MUST be 11 protons……..

What is the atomic mass in an atom?

atomic mass, the quantity of matter contained in an atom of an element. It is expressed as a multiple of one-twelfth the mass of the carbon-12 atom, 1.992646547 × 10−23 gram, which is assigned an atomic mass of 12 units.

What is the atomic number of carbon-12?

6
Carbon-12 is of particular importance in its use as the standard from which atomic masses of all nuclides are measured, thus, its atomic mass is exactly 12 daltons by definition. Carbon-12 is composed of 6 protons, 6 neutrons, and 6 electrons….Carbon-12.

General
Protons	6
Neutrons	6
Nuclide data
Natural abundance	98.93\%

How many atoms are in atomic mass?

Thus, the atomic mass of a carbon-12 atom is 12 Da by definition, but the relative isotopic mass of a carbon-12 atom is simply 12. The sum of relative isotopic masses of all atoms in a molecule is the relative molecular mass….Mass defects in atomic masses.

Nuclide	Ratio of atomic mass to mass number
238U	1.0002133905(67)

How many neutrons do carbon 12 and carbon-13 have respectively?

six neutrons
Its atomic mass is 12.11. How many neutrons do carbon-12 and carbon-13 have, respectively? Carbon-12 has six neutrons. Carbon-13 has seven neutrons.

Is atomic number number of protons?

atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.

What is the mass of 1 atom of carbon-12?

The mass of a single atom of Carbon 12 is simply the mass of a mole of the stuff (12 grams) divided by Avogadro’s number (6.022 x ). That works out to 1.9927 x grams.

Why is the atomic mass of carbon-12?

Carbon-12 is the standard while measuring the atomic masses. Because no other nuclides other than carbon-12 have exactly whole-number masses in this scale.

How many neutrons does carbon-12 have quizlet?

Terms in this set (17) Carbon-12 is the most common isotope of carbon. It has 6 protons, 6 neutrons, and 6 electrons. Of its 6 electrons, 4 are valence.

How many protons neutrons and electrons does carbon-12 have?

six protons
A neutral atom of Carbon-12 contains six protons, six neutrons, and six electrons; therefore, it has a mass number of 12 (six protons plus six neutrons).

Is atomic mass a mass number?

Atomic mass is also known as atomic weight. Atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element’s isotopes. The mass number is a count of the total number of protons and neutrons in an atom’s nucleus.