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20 protons and 18 electrons

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A positive two ion of calcium Ca would have how many protons electrons and neutrons?

A positive calcium ion (Ca^2+) has 20 protons, 18 electrons, and 20 neutrons. This is because the atomic number of calcium is 20, indicating 20 protons in a neutral atom, and losing 2 electrons makes it positively charged while the number of protons and neutrons remains the same.


What are the charging of protons electrons and neutrons?

Protons have a positive charge, electrons have a negative charge, and neutrons are neutral and have no charge.


How many protons electrons and neutrons dose calcium have?

Calcium has 20 protons and electrons and a variable number of neutrons, depending on the isotope.


How many protons neutrons and electrons does Ca have?

Electrons have no relevant mass, and protons and neutrons both have the mass of 1u. If Calcium has the number 20, it has 20 protons (and electrons). It's mass is about 40u. Core Mass - Protons = Neutrons 40u - 20u = 20u, this means Calcium has 20 electrons, 20 protons and 20 neutrons.


What are the subatomic particles of calcium?

Calcium has 20 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a calcium atom = Mass number - 20


How many protons electrons and neutrons does a positive two ion for calcium?

20 p+ 20 n


What do protons and electrons have that neutrons do not?

Protons and electrons both have a positive or negative charge, but neutrons have no charge.


Which of the has an electric charge?

(a) a sodium atom with 11 protons, 11 electrons, and 12 neutrons (b) a calcium atom with 20 protons, 18 electrons, and 20 neutrons (c) a helium atom with 2 protons, 2 electrons, and 2 neutrons (d) an iron atom with 26 protons, 26 electrons, and 30 neutrons


Which one is the positive one electrons protons or neutrons?

protons are positive


What does calcium contain?

Um, the element calcium? Protons, neutrons, electrons..


Is the protons for neutrons negative?

No. Protons are positive and neutrons are neutral. Electrons are negative.


What charge do the protons and neutrons have?

Protons- positive neutrons- none electrons-negative