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How many electrons does it take to make 80Cu of charge?
One coulomb of charge equals approximately 6.241 x 10^18 electrons. Therefore, to make 80 coulombs of charge, it would take approximately 4.99 x 10^20 electrons.
How many electrons are present in 40Ca2?
A calcium ion with a 2+ charge (Ca2+) has lost two electrons. A neutral calcium atom (Ca) has 20 electrons, so Ca2+ would have 18 electrons.
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
An electric bulb draws a current of 0.25A for 20 minutes calculate the electric charge?
1 Ampere = 1 Coulomb per second0.25 A = 0.25 Coulomb per sec1 minute = 60 seconds20 minutes = (20 x 60) = 1,200 seconds0.25 A for 20 minutes = (0.25 x 1,200) = 300 Amp-seconds = 300 Coulombs of charge
How many electrons are transferred between 2 points kept at a potential difference of 20 volt if 40 joule of work is done?
The work done in moving a charge q through a potential difference V is given by the equation W = qV. Given that 40 J of work is done in moving the charge through a potential difference of 20 V, we can find the charge q as q = W/V. Therefore, the number of electrons transferred can be calculated using the charge of a single electron (1.6 x 10^-19 C).
How many electrons make 20C charge?
20 coulomb (1 coulomb/1.602 X 10 -19 coulomb ( electron charge ) = 1.2 X 1020 electrons needed =======================
How many electrons does it take to make 80Cu of charge?
One coulomb of charge equals approximately 6.241 x 10^18 electrons. Therefore, to make 80 coulombs of charge, it would take approximately 4.99 x 10^20 electrons.
How many electrons does an ion with a charge of -2 and 20 protons have?
22
If calcium is most happy with a charge of 2 how many electrons would it have?
A calcium atom has 20 electrons. To achieve a charge of +2, calcium will lose 2 electrons, leaving it with 18 electrons.
What kind of charge does an atom with 20 protones and 20 electrons have?
Neutral or no charge.
How many protons and electrons are in an atom in calcium?
An atom of calcium has 20 protons and 20 electrons. This is because in a neutral atom, the number of protons (positive charge) is equal to the number of electrons (negative charge).
How many electrons does calcium1- have?
A Calcium ion with a -1 net charge would have 21 electrons. Calcium as a stable element has 20 electrons.
What is the ionic charge of neutral calcium that contains 20 protons 20 neutrons and 20 electrons and loses two electrons?
The neutral calcium atom contains 20 protons and 20 electrons, giving it an overall charge of 0. By losing two electrons, the calcium atom becomes a Ca2+ ion with a charge of +2.
A cation of calcium has a 2 plus charge how many electrons does it have?
A calcium ion with a 2+ charge has lost 2 electrons. This means it now has 18 electrons, as the atomic number of calcium is 20 and losing 2 electrons results in an ion with 18 electrons.
How many electrons would you need to make calcium neutral?
You would need 2 more electrons to make a calcium ion neutral, since calcium has 20 protons (+20 charge) and 18 electrons (-18 charge), resulting in an overall +2 charge. Adding 2 more electrons would balance out the charge to become neutral.
If Ca has a 2 negative charge how many protons does it have?
Calcium (Ca) normally has 20 protons. If it has a 2- charge, it gained 2 electrons, making its overall charge negative.
What is the subatomic particles charges of calcium atom?
The three main subatomic particles that form an atom are protons, neutrons, and electrons. The center of the atom is called the nucleus.The protons have a positive charge, the neutrons have no charge, and the electrons have a negative charge.
