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An atom that has twelve protons in its nucleus has an atomic number of?
An atom with twelve protons in its nucleus has an atomic number of 12. The atomic number represents the number of protons in an atom's nucleus, which determines the element. In this case, the element with 12 protons is magnesium.
An atom of sodium has 11 protons 11 electrons and 12 neutrons What is its atomic number and its mass number?
The atomic number of an atom is the number of protons it has, so in this case, the atom of sodium has an atomic number of 11. The mass number of an atom is the sum of its protons and neutrons, so the mass number of this sodium atom is 23 (11 protons + 12 neutrons).
The atomic number of an atom is equivalent to which of the following?
The atomic number of an atom is equivalent to the number of protons in its nucleus.
How many electrons are in a magnesium atom?
12The atomic number of Mg is 12. This means it has 12 protons in the nuclei of its atoms. In a neutral atom, the number of electrons equals the number of protons.12
A magnesium atom has 12 protons and 12 neutrons what is its mass number?
The atomic number of magnesium is 12. Its nucleus must contain 12 protons and no electrons. The atomic number of an atom is determined by the number of protons. Electrons are not in the nucleus.
How do you tell how many neutrons are in an atom with the atomic number of 12?
To find the number of neutrons in an atom with an atomic number of 12 (which is the number of protons), you would subtract the atomic number from the atomic mass number. The atomic mass number is the sum of the protons and neutrons in the atom. For an atom with an atomic number of 12, the number of neutrons can be calculated by subtracting 12 from the atomic mass number given for that specific atom.
An atom that has twelve protons in its nucleus has an atomic number of?
An atom with twelve protons in its nucleus has an atomic number of 12. The atomic number represents the number of protons in an atom's nucleus, which determines the element. In this case, the element with 12 protons is magnesium.
What is the atomic number of magnesium what does the number tell you?
The atomic number of magnesium is 12. The atomic number tells you the number of protons in the nucleus of the magnesium atom, which also corresponds to the number of electrons in a neutral magnesium atom.
What is the atomic number and mass number of an atom with 11 protons and 12 neutrons?
Its atomic number is 11 and its mass is 22.99. This atom is a sodium atom.
If the atom has 14 protons and 12 neutrons what the atomic number?
The atomic number is the number of protons in an atom's nucleus, which in this case is 14. This is because the atomic number is determined by the number of protons in an atom, not the number of neutrons.
Atom has a mass number of 25 and 13 neutrons. What is the atomic number of this atom?
12
An atom of sodium has 11 protons 11 electrons and 12 neutrons What is its atomic number and its mass number?
The atomic number of an atom is the number of protons it has, so in this case, the atom of sodium has an atomic number of 11. The mass number of an atom is the sum of its protons and neutrons, so the mass number of this sodium atom is 23 (11 protons + 12 neutrons).
What is the atomic mass number of an atom of sodium that contains 12 neutrons?
The atomic mass number of an atom is the sum of its protons and neutrons. Sodium typically has 11 protons, so if the atom has 12 neutrons, the atomic mass number would be 23 (11 protons + 12 neutrons).
How many protons are in an atom that has an atomic number of 12 and a mass number of 22?
12
if an atom has a mass number of 32 and it has 20 neutrons in the nucleus, what is the atomic number of this atom?
12 protons
What is the number of neutrons in an atom with atomic number 12 and mass number 22?
Number of neutrons = Mass number - Atomic number = 22 - 12 = 10
Sodium has an atomic mass of 23 and an atomic number of 11 so the number of neutrons must be?
Sodium does have an atomic number of 11, and if the isotope's atomic mass is 23, the atom would have 11 protons (the atomic number) and 12 neutrons (the atomic mass minus the atomic number). The atom would have 11 electrons, and when ionized it would lose one and take on a charge of +1.
