## What is the mass number of an ion with 108 electrons 157 neutrons and a +1 charge?

What is the mass number of an ion with 108 electrons 157 neutrons and a +1 charge? Answer : The mass number for this element is **266**.

## What is the mass number of an ion with 108 electrons 159 neutrons and a +1 charge Express your answer as an integer?

The mass number is 108 + 159 = **267**.

## What is the mass number of an ion with 109 electrons 158 neutrons and a +1 charge Express your answer as an integer?

WHAT IS THE MASS NUMBER OF AN ION WITH 109 ELECTRONS, 158 NEUTRONS, AND A +1 CHARGE? | 268 |
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FLUORINE'S ATOMIC NUMBER IS 9 & ITS ATOMIC MASS IS 19. HOW MANY NEUTRONS DOES FLUORINE HAVE? | 10 |

An uncharged atom of boron has atomic # if 5 & atomic mass of 11. How many protons does boron have? | 5 |

## What is the mass number of an ion with 18 electrons 20 neutrons and a +1 charge?

Mass no. = 20 + 20 = **40**.

## How do I find the mass number of an ion?

1:475:03Nuclide Symbols: Atomic Number, Mass Number, Ions, and IsotopesYouTube

## How do you calculate mass number?

Together, the number of protons and the number of neutrons determine an element's mass number: **mass number = protons + neutrons**. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

## What is the mass number of an atom with 106 electrons 159 neutrons and a +1 charge?

Terms in this set (17) What is the mass number of an ion with 106 electrons, 159 neutrons, and a +1 charge? The mass number of an atom is **15**, and its atomic number is 7.

## How do you find the mass number?

Together, the number of protons and the number of neutrons determine an element's mass number: **mass number = protons + neutrons**. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

## How do you find a mass number of an ion?

Together, the number of protons and the number of neutrons determine an element's mass number: **mass number = protons + neutrons**.

## How do you find the mass of an ion?

' The formula mass of an ionic compound is the **sum of the atomic masses of the atoms or ions represented by its formula** in comparison to the mass of a carbon-12 atom taken as 12 units, i.e., the formula mass is the sum of the atomic masses of the atoms or ions represented by its formula.

## What is the mass number of an ion that consists of 20 protons 20 neutrons and 18 electrons?

Chem: Configuration Review

A |
B |
---|---|

the mass number of an ion that consists of 20 protons, 20 neutrons, and 18 electrons | 40 |

mass number of an atom is equal to | protons plus neutrons |

has a mass 1/1837 of the mass of a proton | electron |

a Na atom has more of these than a Na+ ion | electrons |

## How do you find the mass number of neutrons and electrons?

The number of electrons in a neutral atom is equal to the number of protons. **The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus**. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).

## What is the mass number of an ion with 106 electrons?

Terms in this set (17) What is the mass number of an ion with 106 electrons, 159 neutrons, and a +1 charge? The mass number of an atom is **15**, and its atomic number is 7.

## How do you find the mass number of an ion?

1:475:03Nuclide Symbols: Atomic Number, Mass Number, Ions, and IsotopesYouTube

## How do you find the mass number of electrons and neutrons?

The number of electrons in a neutral atom is equal to the number of protons. **The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus**. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).

## What element has 106 protons and 159 neutrons?

For example, **seaborgium 265**, which has a nucleus containing 106 protons and 159 neutrons, decays to rutherfordium 261, which decays to nobelium 257.

## What are the 3 ways to find the mass number?

**3 Ways to Find Atomic Mass**

- Look Up Atomic Mass on the Periodic Table. …
- Sum of Protons and Neutrons for a Single Atom. …
- Weighted Average for All Atoms of an Element.

Feb 14, 2020

## How do I calculate mass units?

To calculate the formula unit mass, **find out the number of atoms of every element present in the chemical formula.** **Add together the relative atomic mass values for all the atoms of every element present**.

## How do u find the mass of an atom?

In an element atomic mass of an atom can be calculated by **adding the mass of protons and neutrons**.

## What is the mass number of an atom that contains 19 protons 18 electrons and 20 neutrons?

**Potassium-39** – It has 19 protons and atomic mass is 39. Hence, number of neutrons is 39 – 19 which is 20.

## What is the mass number of an element that has 18 protons 18 electrons and 20 neutrons?

Because the mass number of an atom is the sum of proton number and neutron number of the atom. So, 18 + 20 = **38**.

## How do you find the atomic number and mass number of protons neutrons and electrons?

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. **The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus**.

## How do you find the mass number on a periodic table?

An element's mass number is unique to that element, and it's listed **right underneath the element's symbol** in the periodic table. The mass number of an element is not the same as its atomic number.

## What element has an atomic mass of 106?

Seaborgium **Seaborgium** is a chemical element with symbol Sg and atomic number 106….Seaborgium.

Atomic Mass | 269.128u |
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Year Discovered | 1974 |

## What is 106 on the periodic table?

seaborgium One is element 99, einsteinium. The other is element 106, called **seaborgium** in honour of the American chemist Glenn Seaborg.

## Where do you find the mass number?

An element's mass number is unique to that element, and it's listed **right underneath the element's symbol in the periodic table**. The mass number of an element is not the same as its atomic number.

## How do you calculate the mass of an ion?

' The formula mass of an ionic compound is **the sum of the atomic masses of the atoms or ions represented by its formula** in comparison to the mass of a carbon-12 atom taken as 12 units, i.e., the formula mass is the sum of the atomic masses of the atoms or ions represented by its formula.

## How do you find the atomic mass of protons neutrons and electrons?

**Atomic mass is the sum of the masses of the protons, neutrons, and electrons** in an atom, or the average mass, in a group of atoms. However, electrons have so much less mass than protons and neutrons that they don't factor into the calculation. So, the atomic mass is the sum of the masses of protons and neutrons.

## What is the charge and mass of electrons?

electron, lightest stable subatomic particle known. It carries a **negative charge of 1.602176634 × 10−19 coulomb**, which is considered the basic unit of electric charge. The rest mass of the electron is 9.1093837015 × 10−31 kg, which is only 1/1,836the mass of a proton.

## What is the mass number of an electron that has 18 protons 18 electrons and 19 neutrons?

Because the atomic number of an atom is same as the proton number of the atoms which means the atomic mass of the atom equal to 18. C) Correct. Because the mass number of an atom is the sum of proton number and neutron number of the atom. So, 18 + 20 = **38**.