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Answered 2012-05-29 21:12:56

Potassium has 19 protons, 19 electrons and a variable number of neutrons - different for each isotope.

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What role does the electron configuration of an element play?

it possibly shows how many shells an element has to show its atomic number

Which two consecutive elements show increase in atomic number and decrease in atomic mass?

this happens with argon and potassium, and also with cobalt nickel. fun stuff.

Show you a model of nitrogen?

See the link below for the atomic configuration.

What does the atomic number show you about the element on the periodic table?

The atomic number is the number of protons present in the element.

The atomic number of an element sHow is the number of?


Can you show me Ca atomic number 20?

Calcium is a metal element. Atomic number of it is 20.

How are isotopes the same and how are they different?

Isotopes have same number of electrons, same atomic no. but different mass no. They are from the same element like isotopes of carbon. They are not having same number of neutrons. They show same electronic configuration.

Do you need atomic number to find atomic mass?

no you do not need to know the atomic number, as that only equates to the number of protons in an atom. Most periodic charts will show you the atomic mass of an element

The number that show is protons plus neutrons?

Protons + Neutrons = Atomic Mass Protons = Electrons # of Electrons = the Atomic Number

What does an atomic number show?

The atomic number is also known as protons. It shows the number of protons found in the nucleus of an atom and identical to the charge number of the nucleus.

How does the periodic table indicate the number of valence electrons?

Periodic table indicates the number of valence electrons.It show electron configuration of electrons.The last number of electron configuration represent number of valence electron.

How do you find the number of protons in a nucleus?

Look at the atomic number. The atomic number show the number of protons and electrons. So for Oxygen, there are 8 protons, and 8 neutrons! = 0

How do you get atomic number?

show me the digram of periodic table new one

Atomic number of an element?

The atomic number of an element show the amount of atoms in each element, its located under the element on the periodic table of elements.

What does a dot diagram and a atomic number have in common?

they both show particles but an atomic number is the amount of protons in the nucleus and a dot diagram is to show the bonding of atoms with electrons. and does not show the amount of electrons those atoms have but the valence electrons each atom has

Why does the periodic table have atomic numbers?

Most periodic tables display the atomic numbers because they show the progression of atomic weights and increasing number of protons.

What is the dot in the middle of a dot and cross diagram?

i need to know this information and much more information for school. and i wish you can help me on it. what does a dot diagram show? what are two things a dot diagram must show? how can the group number help in determining the number of valence electrons? what is true for the dot diagram for every element in a group? what is helium's dot diagram? why is helium's dot diagram different? what do electron configurations show? how is the total number of electrons for an aton determined? what do all the number in the electron configuration equal to? why is knowing the period an element is in necessary to write a correct electron configuration? what does the group number tell us about the electron configuration? what are the electron configurations of Lithium (Li), Carbon (C), Magnesium (Mg), Silicon (Si), Chlorine (Cl), Potassium (K)?

How would you explain how to determine the number of neutrons and atom contains if you know its mass and its atomic number?

SHow your work

How can you find the number of outer electrons?

To find the number of outer electrons in an element, or valence electrons, look on the Periodic Table of Elements. Look at the last number of the electron configuration. An element that has an electron configuration of 2-7 has 7 valence electrons.Link to a periodic table of elements with electron configuration:

Information can be obtained about an element by where it is located on the Periodic Table of Elements?

The atomic strucutre and the sub-atomic particle. It place is according to how many shells it has and how many electrons in its outer shell. A new row on the table show a new shell on the element. The atomic number( the bottom) show the number of protons the neuclus has, and the atomic number(top one) shows how many protons and neutrons the atom has together this can be used to see if an isotope is made

Which two settings show the default value of VTP configuration on a Cisco 2960 switch?

revision number pruning mode

Carbon atom with atomic no of 6 and atomic mass of 12 considered isotopes of one another?

No. A carbon atom has both an atomic number and an atomic mass. All carbon atoms have an atomic number of 6. The most common carbon atom has an atomic mass of 12. See the Related Questions for more information about carbon, isotopes and atomic number and atomic mass.Go to and punch in "carbon isotopes" and it will show you various isotopes and the atomic mass (u) associated with each (shown as isotopic mass).

Why are electrons and protons important?

They are important because electrons show the negative charge of the atom and protons show the positive charge of the proton. Also, the atomic number in an element is the number of protons it has.

What does the electron configuration of an atom show?


What info does the periodic table of elements show?

Each box on the periodic table of elements shows at least three things. The number at the top of the box is the atomic number of the element. The letters in the middle of the box are the chemical symbol for the element. Remember that capitalization matters when writing those symbols. The number at the bottom of the box is the average atomic mass of the element. More advanced periodic tables may contain information about electron configuration, common oxidation states, and number of electrons in each electron shell.

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