# What Is The Symbol For The Ion With 19 Protons And 18 Electrons?

K+

## What is the symbol for the ion with 18 electrons and an ionic charge of?

Explanation: A certain element forms an ion with 18 electrons and a charge of +2. Recall that atoms have the same number of electrons as protons and the atomic number of an atom is the number of protons it has. So the atom in question is the atom whose atomic number is 20…..that’s calcium (Ca).

## Which ions has 18 electrons?

Ca2+ represents an ion with 20 protons and 18 electrons. A calcium atom has 20 protons and 20 electrons. The 2+ charge next to the symbol indicates a loss of two electrons: 20-2=18. When atoms form ions they lose or gain electrons.

## What is the symbol for the atom 19 protons?

potassium

The element of potassium has the symbol K. The nucleus of an atom of potassium contains 19 protons and 20 neutrons.

## What ion has 18 electrons with a charge?

Explanation: A certain element forms an ion with 18 electrons and a charge of +2. … Recall that atoms have the same number of electrons as protons and the atomic number of an atom is the number of protons it has. So the atom in question is the atom whose atomic number is 20…..that’s calcium (Ca).

## What type of ion is formed with 19 protons 19 neutrons and 18 electrons?

K+

The symbol for the ion with 19 protons and 18 electrons is K+.

## What atom has 19 protons 21 neutrons and 19 electrons?

What atom has 19 protons 21 neutrons and 19 electrons? – Quora. The number of neutrons tells us which isotope of potassium it is. Add the 19 (protons) to the 21 (neutons) and you get 40. So it’s Potassium 40.

## What is the charge of 18 electrons?

-1 charge

There are 17 protons in an ion with 18 electrons and a -1 charge.

## What is atomic number of ion with and 18 electrons?

O atom. (ii) for an ion (charged atom) number of electrons : # of protons -.( charge of atom) . Ex: ce has 17-(-1) = 18 electrons.

## How do you find an ion symbol?

When writing the symbol for an ion the one- or two-letter element symbol is written first followed by a superscript. The superscript has the number of charges on the ion followed by a + (for positive ions or cations) or – (for negative ions or anions). Neutral atoms have a charge of zero so no superscript is given.

## Which ion would contain 19 electrons?

1.17: Ions
Element Protons Electrons
Potassium atom 19 19
Potassium ion 19 18
Sulfur atom 16 16
Sulfur ion 16 18

## What is the symbol of the ion having 17 protons and 18 electrons?

What is the mass number of a chlorine atom with 17 protons and 18 neutrons? What is the symbol of the ion having 17 protons and 18 electrons?

How many atoms is 3mgso4?
Element Symbol # of Atoms
Oxygen O 12

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## What could have 19 protons 19 electrons and 23 neutrons?

Chemical Elements.com – Potassium (K)

## What is the name of the element that has 18 protons?

Argon

So the atomic number is also  and the element with atomic number  is Argon with the symbol [Ar].

## What is an anion with 18 electrons?

Explanation: Table salt is NaCl and thus the anion is Cl− for which Z=17 . And if there are TWO chlorides the NEUTRAL salt must contain a doubly charge charged cation. And since this cation has 18 electrons for the parent atom Z=20 i.e. the element is calcium.

## What element has 18 protons and 22 neutrons and 18 electrons?

Argon
The chemical symbol for Argon. A 2 dimensional representation of a Argon atom with 18 protons and 22 neutrons in the nucleus and 18 electrons orbiting the nucleus.

## Which element or ion has 19 protons 18 electrons and 20 neutrons?

The element is NECESSARILY potassium.

## What isotope has 19 protons and 21 neutrons?

Potassium-40

Potassium-40 has 19 protons and 21 neutrons.

## What is the mass for and atom with 19 protons and 20 neutrons?

For example mass of an element consisting of 19 protons and 20 neutrons is calculated as follows. Therefore we can conclude that mass number of the given element is 39.

## What does the symbol 39 19 K mean?

It is the number under the element symbol. For potassium it is about 39. This means that the atomic weight is 39 for both protons and neutrons. Since we know that the number of protons is 19 we can calculate the number of neutrons (39 19) as 20.

## What is the symbol for the chemical species with 21 protons and 18 electrons?

Sc3+ ion

Answer. The Sc3+ ion contains 21 protons and 18 electrons.

## What is 19 on the periodic table?

Potassium

Potassium – Element information properties and uses | Periodic Table.

## Which is the correct ion symbol for an ion with 15 protons and 18 electrons?

What is the symbol for an ion having 15 protons and 18 electrons? By referring to a periodic table or table of elements we see that phosphorus (symbol P) has an atomic number of 15. Thus each atom has 15 protons. The mass number of the ion is 15 + 16 = 31.

## What’s the ionic charge of an ion with 18 protons and 15 electrons?

3+

Protons are positively charged while electrons are negatively charged. If the ion has 18 protons and 15 electrons it has 3 more protons than electrons therefore the ion has an overall positive charge of 3+.

## What is the element name for 18 protons 20 neutrons and 18 electrons?

What element has 18 protons 20 neutrons and 18 electrons? – Quora. The element is Ar- 38. If you look at the periodic table argon (Ar) has 18 protons and thus 18 electrons. We can use the number of neutrons (20 neutrons) to find the mass number of the element.

## What is the symbol for a 2+ ion with 18 electrons?

The element that forms an ion with 18 electrons and a charge of +2 is Ca (Calcium).

## Does atomic number equal protons?

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.

## How do you find the electrons?

To calculate the numbers of subatomic particles in an atom use its atomic number and mass number: number of protons = atomic number. number of electrons = atomic number.

## How do you find electrons in ions?

The charge on the ion tells you the number of electrons. If the charge is positive subtract that number from the atomic number to get the number of electrons. You have more protons. If the charge is negative add the amount of charge to the atomic number to get the number of electrons.

## What is the charge of an ion that contains 16 protons and 18 electrons?

2–

Thus each atom or ion of sulfur must contain 16 protons. We are told that the ion also has 16 neutrons meaning the mass number of the ion is 16 + 16 = 32. Because the ion has 16 protons and 18 electrons its net charge is 2–.

## What particle has a +1 charge and 19 protons?

Introduction
Particle Electric Charge (C) Atomic Charge
Protons +1.6022 x 1019 +1
Neutrons
Electrons -1.6022 x 1019 -1

19

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