# What isotope has an atomic number of 5?

## What isotope has an atomic number of 5?

The Elements, sorted by Atomic Mass

Atomic Number Symbol Name
3 Li Lithium
4 Be Beryllium
5 B Boron
6 C Carbon

## What is the atomic mass of an atom that has 5 protons and 6 neutrons?

(b) The nucleus of an atom has 5 protons and 6 neutrons then the mass no. will be 6+5 = 11.

## What is the mass number of an atom with 5?

The mass number of an atom with five protons and seven neutrons is 12.

## What isotope has 5 protons and 6 neutrons?

Boron
Atomic Number

Name Protons Neutrons
Lithium 3 4
Beryllium 4 5
Boron 5 6
Carbon 6 6

## What is the atomic number of uranium 235?

92
Fact box

Group Actinides 1135°C, 2075°F, 1408 K
Period 7 4131°C, 7468°F, 4404 K
Block f 19.1
Atomic number 92 238.029
State at 20°C Solid 234U, 235U, 238U

## How is carbon-12 an isotope?

Isotopes are forms of the same element with equal numbers of protons but different numbers of neutrons. For example, both carbon-12 and carbon-14 have 6 protons. But carbon-12 has 6 neutrons while carbon-14 has 8 neutrons. By definition, carbon-12, carbon-13 and carbon-14 are all isotopes of the carbon.

## What is the atomic number of an atom that has 5 protons 6 neutrons and 5 electrons?

In this case the mass number would be 11.

## What is the atomic number of the element has 5 protons and 11 mass numbers?

boron
This means that any atom that has 5 protons in its nucleus will be a boron atom. So, the mass number of this boron isotope is equal to 11 , and the atomic number to 5 .

## What are elements 5 and 6?

Chemistry

No. A. weight Name
5 10.811 Boron
6 12.011 Carbon
7 14.007 Nitrogen
8 15.999 Oxygen

## What is the atomic mass of an atom that contains 6 electrons 3 neutrons and 6 protons?

all isotopes of carbon atoms have 6 electrons and 6 protons, which is why the atomic number of carbon is 6 . a carbon-12 atom has 6 protons, 6 neutrons, and 6 electrons, so its mass number is 12 and its atomic number is 6 .

## What is the atomic mass of 235 U 92?

Fact box

Group Actinides 1135°C, 2075°F, 1408 K
Period 7 4131°C, 7468°F, 4404 K
Block f 19.1
Atomic number 92 238.029
State at 20°C Solid 234U, 235U, 238U

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

You already know how to find the mass number of an isotope by adding the protons and neutrons. We can state the relationship between protons, neutrons, and mass number with the following equation: A = N + Z atomic mass number = number of neutrons + atomic number (number of protons) Atomic mass number will be a whole number.

## What is the relationship between protons and neutrons and mass number?

We can state the relationship between protons, neutrons, and mass number with the following equation: A = N + Z atomic mass number = number of neutrons + atomic number (number of protons) Atomic mass number will be a whole number.

## What is the difference between an isotope and an atomic number?

The atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons. Google Classroom Facebook Twitter

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

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.