Which Element Has A Mass Number Of 39 And 20 Neutrons?

#19 –

Potassium

– K.

What element has a mass number of 39?

What element has a mass of 39 and 20 neutrons?

The atomic mass of

potassium

is 39.

What element has a number of neutrons 20?

Which element has a mass number of 40 and 20 neutrons?

number of neutrons = 20

An atom of the

calcium-40 isotope

has 20 neutrons in its nucleus.

Which element has a mass number of 39 and 19 electrons?

A neutral atom of

potassium

has an atomic number of 19 and an atomic mass number of 39.

What element has a mass of 89 and 39 electrons?

Chemical Elements.com –

Yttrium (Y)

What is the mass number for potassium 39?

The stable isotope of potassium with relative atomic mass

38.963707

, 93.3 atom percent natural abundance and nuclear spin 3/2.

Why does potassium 40 have a different mass number for potassium 39?

This difference is enough to make potassium 40 unstable. The reason for this is that

protons

, like neutrons, like to exist in pairs in a nucleus. Potassium 40 contains odd numbers of both – 19 protons and 21 neutrons. As a result it has one bachelor proton and one bachelor neutron.

Does an isotope of potassium with a mass number of 39 contains 19 neutrons?

There are 25 known isotopes of potassium, three of which occur naturally: 39K (93.3%), 40K (0.0117%), and 41K (6.7%). Potassium-39 is composed of

19 protons, 20 neutrons

, and 19 electrons.

Can you have 0 neutrons?

Explanation: Hydrogen has 1 proton, 0 neutrons and 1 electron. The Isotope of hydrogen that can have zero neutrons is called

Protium

. The other hydrogen isotopes are Deuterium(1 neutron) and Tritium (2 neutrons).

Which element has 16 neutrons?

if you look at the periodic table,

phosphorus

has 15 electrons and protons, and 16 neutrons.

What particle has no charge?

Neutron

, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10

^{− 27}

kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.

What 2 elements have 10 neutrons?

All beryllium atoms have 5 neutrons in the nucleus and all

fluorine atoms

have 10 neutrons.

What is the total number of neutrons in a calcium atom that has a mass number of 40?

In calcium-40, there are

20 neutrons

.

What element has 9 protons and 10 neutrons?

Consider

fluorine

atoms with 9 protons and 10 neutrons.