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Calcium, of the alkali earth metal group, has twenty protons and thus an atomic number of 20. The atomic number for an atom is the total amount of protons (positive particles) in an atom. This group comprises the second group according to IUPAC style on the periodic table. Calcium, like the others in its family, is a soft, silverish metal. They are reactive, though not so much as the alkali metals. The electron rings of Calcium are organized 2,8,8,2. The other elements in this family include: Beryllium, Magnesium, Calcium is the third, Strontium, Barium, and Radium.
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What is the symbol for an atom that has 20 protons and 22 neutrons?
It is 42 Ca.
Which element has 20 protons 20 neutrons and 20 electrons?
Calcium has 20 protons and electrons. The symbol for calcium is Ca and its atomic number is 20.
An atom of an element contains 20 protons 20 neutrons and 20 electons This element is?
Calcium: The identity of an element is determined by how many protons each atom of the element has, and calcium is the name of the element with 20 protons per atom.
How many protons and electrons does a calcium atom have?
Calcium has 20 protons, 20 electrons and 20 neutrons in its most commonly found isotope.
What is the difference between an atom of calcium and an atom of neon?
Neon has 10 protons and 10 electrons. Calcium has 20 protons and 20 electrons.
What is the number of protons to the atom?
12 or 20
How many protons are in acalcium atom that has an atomic number of 20?
The number of protons in an atom is always the same as the atomic number of the element. For calcium, this is 20.
How many protons and electrons are in an atom in calcium?
Calcium's atomic number is 20. That means that it has 20 protons. To make it neutral then, an atom of calcium must also have 20 electrons.
The mass number of an atom of calcium with 20 protons and 20 neutrons is?
40, the sum of the protons and neutrons.
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 does the nucleas of a calcium atom contain?
It has 20 neutrons and 20 protons.
How many protons are in a stable atom of calcium?
20
