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How is the periodic table used to describe atomic structure?
The periodic table can be used to describe atomic structure by using the period to tell you how many shells (principle quantum number) there are in an element, and the group number can be used to tell you the number of valence electrons in the outermost shell.
Give a balanced chemical equation for potassium and chlorine to produce potassium chloride?
Potassium chloride, KCl, is a metal salt. It is composed of one atom of potassium (K) and one atom of chlorine (Cl). Potassium is an alkaline metal from Group 1 in the periodic table, and chlorine is a halogen from Group 17 on the periodic table. All elements from Group 1 have a +1 oxidation state, and all elements from Group 17 have a -1 oxidation state. Elements from Group 1 will form one-to-one relationships with elements from Group 17.
What can you predict about an element by its position on the periodic table?
By the position of an element on the periodic table you can tell how many protons the element has in it by looking at the number above the elements symbol. You can also find the electron configuration with that same number then you can and you can you can also tell if it is f1, f2,f3...s1,s2,d1,d2...
Calcium's atomic number is 20. What does that that tell us about a calcium atom?
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How can you find the number of protons and electrons and neutrons in potassium?
PotassiumThe number of protons in an atom will always be the same as the atomic number, by which the periodic table is organized. So figuring out how many protons an atom has just becomes an exercise at reading the table. In this case, potassium has an atomic number of 19. If the particle is specifically an atom, then it will be neutral and the number of electrons will balance the number of protons exactly, 19 also. The number of neutrons will differ depending on the isotope - atoms of the same element with different numbers of neutrons. Potassium has three isotopes, the most common in nature being 39K with 22 neutrons.See the related question below which gives instructions on how to find the number of subatomic particles in an atom or ion based on given information.
What is the need of atomic models?
Atomic models tell us about the structure of an atom which is based on what we know about how atoms behave. But it is not necessary that it will be a genuine picture of the structure of an atom.
How is the periodic table used to describe atomic structure?
The periodic table can be used to describe atomic structure by using the period to tell you how many shells (principle quantum number) there are in an element, and the group number can be used to tell you the number of valence electrons in the outermost shell.
What does each periodic number in the periodic table tell about the atomic structure?
The atomic number is equal to the number of protons and the number of neutrons in that atom.
What is need of model of atoms?
Atomic models tell us about the structure of an atom which is based on what we know about how atoms behave. But it is not necessary that it will be a genuine picture of the structure of an atom.
How can you tell using the periodic table that sodium and potassium are similar?
You can tell by the location, and the fact that they are both in the same column. Elements in the same column (or group) have similar properties.
Give a balanced chemical equation for potassium and chlorine to produce potassium chloride?
Potassium chloride, KCl, is a metal salt. It is composed of one atom of potassium (K) and one atom of chlorine (Cl). Potassium is an alkaline metal from Group 1 in the periodic table, and chlorine is a halogen from Group 17 on the periodic table. All elements from Group 1 have a +1 oxidation state, and all elements from Group 17 have a -1 oxidation state. Elements from Group 1 will form one-to-one relationships with elements from Group 17.
What does the number of nucleus tell you about the element?
The number of the protons in the nucleus of a chemical element is equivalent to the atomic number; the atomic number define the position of this element in the periodic table (group, period). And from these we can suppose the chemical properties of this element.
What can you predict about an element by its position on the periodic table?
By the position of an element on the periodic table you can tell how many protons the element has in it by looking at the number above the elements symbol. You can also find the electron configuration with that same number then you can and you can you can also tell if it is f1, f2,f3...s1,s2,d1,d2...
The atomic number of an element will tell you what?
Atomic number = Number of protons
How does the charge on the ions tell us that potassium is a metal?
Potassium has 19 electrons in total. As we all know, those on the left side of the periodic table are metals.Atomic Configuration of Potassuim(2,8,8,1)[2,8,8,1] indicates it is in the fourth period and it is the value on the left side of the periodic table.Remember: The last atomic value speaks for itself.
What does the atomic number of an element tell you about the element?
Atomic number = Number of protons
What does the atomic number tell about an atom of that element?
Atomic number = Number of protons
