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Chlorine, the halogen in period 3.
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∙ 12y ago
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How can you use the period number and the group number on the periodic table to describe an element's atomic structure?
The period number helps in determining the number of shells in the element. For example, Sodium (Na) is in 3rd period that means there are 3 shells in the atom of an Sodium.
What information is given by the noble gas notation Ne 3s2?
The element is magnesium with an atomic number 12.The element belongs to the 3rd period, with two valence electrons in the s orbitals. The element is an example of alkaline earth elements or group 2 elements.
What element is the 3rd element?
lithium is the third element. It is placed in group-1
If an electrically neutral atom has an atomic number of 17 and an atomic mass of 36 how many electrons will it possess?
The atomic number of 17 is the number of protons in nucleus of the atoms of this element (chlorine, Cl). In a neutral atom, the numbers of protons and electrons are equal, so this atom also has 17 electrons. The mass number in this problem is a distractor, and does not contribute to solving the problem. You can use electron configuration to figure out how many electrons are in the second energy level: 1s22s22p63s23p5. You can see that there are 8 electrons in the second energy level in the 2s and 2p orbitals. You also can look Cl up on the periodic table and see that it is in the 3rd period, which means that its second energy level is full (meaning 8 electrons). The last element to add to the second energy level is the noble gas neon (Ne) in the 2nd period. Neon's 2nd energy level is completely filled. So the next element, sodium (Na), starts adding electrons to the 3rd energy level, and its the first element in the 3rd period. All of the rest of the 3rd period elements continue adding electrons to the 3rd energy level s and p orbitals, until the noble gas Argon (Ar), which fills the 3rd energy level s and p orbitals.
Where is period 3 located on periodic table?
Period 3 is the 3rd horizontal row. It is the 3rd row in periodic table.
What element in the 3rd period always forms a 3 plus cation?
Aluminum
Which period is Mg in on periodic chart?
The element Mg is in the 3rd period of the periodic table.
What element has three energy levels and properties of metals and nonmetals?
The element has 3 energy levels means that it is in the 3rd period. The only metalloid in the 3rd period is Si. It is in the 14th group.
Which element is in the same period as sodium?
Sodium is in 3rd period and seven other elements are in same period they are Magnesium, Aluminium, Silicon, Phosphorus, Sulphur, Chlorine and Argon.
How can you use the period number and the group number on the periodic table to describe an element's atomic structure?
The period number helps in determining the number of shells in the element. For example, Sodium (Na) is in 3rd period that means there are 3 shells in the atom of an Sodium.
What is row on the periodic table called what do they have in common?
The row is called the period. Each element in the same period has the outermost electrons in the same shell (energy level). For example, the elements in the 3rd period all have the outermost electrons in the 3rd shell.
Why does magnesium have the greatest number of nuclear charge in period 3?
The element Magnesium has two charges. The element Magnesium has two charges.
What information is given by the noble gas notation Ne 3s2?
The element is magnesium with an atomic number 12.The element belongs to the 3rd period, with two valence electrons in the s orbitals. The element is an example of alkaline earth elements or group 2 elements.
What element is the 3rd element?
lithium is the third element. It is placed in group-1
What is four minus two thirds?
3 and one third 3 and one third What is four minus two thirds??? 3 and 1/3rd 3 and 1/3rd 3 and 1/3rd
What period is chlorine in?
3rd period
Which element is in the same period as sulfur?
Including S such elements are 8, Na,Mg,Al,SI,P,S,Cl and Ar. (3rd period of periodic table)
