What is the charge of an ion that contains 21 protons and 19 electrons Sc2+ this...

What is the charge of an ion that contains 21 protons and 19 electrons

Sc2+

this is the answer bc 21 protons times 2 = 42-19 electrons = 23. 23-21= 2 electrons that are lost

Expert Solution

atomic number equal to no of protons

atomic number = no of protons

atomic number = 21

no of electrons = 19

Charge on atom = no of protons - no of electrons

= 21-19 = 2

Sc -2e^- -----------------> Sc^+2

21e^- 19e^-

21p 21p

queen_honey_blossom answered 2 years ago

An ion from a given element has 11 protons and 10 electrons. What is the charge...

An ion from a given element has 11 protons and 10 electrons. What is the charge on the ion? What is the name of the element? What is the symbol for the ion?

Determine the number of neutrons, protons, and electrons for a bromide ion that has a mass number of 76, and a charge of -1.

Determine the number of neutrons, protons, and electrons for a bromide ion that has a mass number of 76, and a charge of -1. number of neutrons: number of protons: number of electrons:Determine the element symbol, number of protons, and number of electrons for an ion that has a mass number of 56, 30 neutrons, and a charge of +3. element symbol: number of protons: number of electrons:Determine the element symbol, m number, and charge for an atom or ion that has a 49 neutrons, 38...

How many protons, neutrons and electrons are in the ion 64Cu2+?

Write the ion (atom) that has 28 protons and has lost 2 electrons. Write the ion...

Write the ion (atom) that has 28 protons and has lost 2 electrons. Write the ion (atom) that has 18 protons and 18 electrons. Write the ion (atom) that has 16 protons and has gained 2 electrons. Write the ion (atom) that has 46 electrons and has lost 4 electrons. Express your answer as a chemical symbol or as an ion.

Calculate the total mass of the protons and electrons in 19/9F. Use 1.007825 amu as the...

Calculate the total mass of the protons and electrons in 19/9F. Use 1.007825 amu as the mass of 1/1H(mass of a proton and an electron). Express your answer in atomic mass units to 6 significant figures. Calculate the total mass of the neutrons in 19/9F. Use 1.008665 amu as the mass of 1/0N(mass of a neutron). Express your answer in atomic mass units to 7 significant figures. Calculate the mass defect of 19/9F. Use 18.9984 amu as the actual mass...

A helium nucleus (called an alpha particle) contains 2 neutrons and 2 protons with no electrons....

A helium nucleus (called an alpha particle) contains 2 neutrons and 2 protons with no electrons. If any electrons are added, there is a negligible amount of mass added but obviously one negative charge per electron is added. Three particles are injected into a constant B-field of 2T at a velocity of 3×106ms. The first particle is only the alpha particle (He++), the second particle is a nucleus with 1 electron (He+), and the third particle is a nucleus with...

An atom has 20 neutrons and 19 protons in its nucleus. How many electrons are in...

An atom has 20 neutrons and 19 protons in its nucleus. How many electrons are in its outer (valence) electron shell? How many shells does it have? What is its atomic mass in g/mol? What is the element? 1, 3, 39, K 1, 4, 19, Mg 2, 4, 19, Mg 2, 4, 39, K 1, 4, 39, K

How many electrons will a Tin, 50Sn2- ion have. (total number of electrons in the ion)...

How many electrons will a Tin, 50Sn2- ion have. (total number of electrons in the ion) How many electrons will a Copper, Cu4+ ion have. (total number of electrons in the ion)

An ion with a charge of +3.2×10−19 C is in a region where a uniform electric...

An ion with a charge of +3.2×10−19 C is in a region where a uniform electric field of 5×104 V/m is perpendicular to a uniform magnetic field of 0.8T. If its acceleration is zero then its speed must be: A. 0 B. 1.6 × 104 m/s C. 4.0 × 104 m/s D. 6.3 × 104 m/s E. any value but 0

An isotope of an element has 50 electrons, 51 protons and 70 neutrons. What is the...

An isotope of an element has 50 electrons, 51 protons and 70 neutrons. What is the element symbol of the element

Question