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32 Answered Questions for the topic Periodic Table

Periodic Table Chemistry

21d

Chemistry Periodic Table

The image shows the representation of an unknown element in the periodic table.Answer Choices:Based on the representation, which of the following statements about the element is true? (3... more
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Periodic Table Science Chemistry

04/29/20

Consider the following list of compounds: MgSO4, C2H2, CH4, CaO. Which compounds are most likely to dissolve in water?
Consider the following list of compounds: MgSO4, C2H2, CH4, CaO. Which compounds are most likely to dissolve in water?
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03/19/20

Periodic table/electron configuration/ion help
Formula of ionic compound formed: AlCl3Cation formed?Anion formed?Electron configurations for the elements?
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Periodic Table Chemistry Ions

03/18/20

Periodic table/electron configuration/ion help
Cation formed: Li +Anion formed: P 3-Formula of ionic compound formed?Electron configurations of the elements?
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03/18/20

Periodic table/electron configuration/ion help
Formula of ionic compound formed: Mg3N2Cation formed?Anion formed?Electron configurations?
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03/18/20

Periodic table/electron configuration/ion help
Cation formed: K+Anion formed: O-The electron configurations?Formula of ionic compound formed?
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03/18/20

Periodic table/electron configuration/ion help
Electron configuration of the element: 1s22s22p63s23p64s21s22s22p63s23p4Cation formed?Anion formed?Formula of ionic compound formed?
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Periodic Table Chemistry Elements

03/18/20

What are group 1A and 2A elements found in many compounds but not group 8A elements?
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Periodic Table Chemistry Elements

03/09/20

Identify what is wrong with the given electron configurations and write the correct electron configurations...
based on the number of electrons. Identify the elements. a) 1s22s22p63s23p63d10b) 1s22s22p63s23p64s24d104p3
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Periodic Table Chemistry Electrons

11/17/19

Why does Kr have larger radius than Ar when Kr has a larger effective nuclear charge?
Looking at the atomic radius trend of the periodic table, Kr has a larger radius than Ar. But my textbook claims that Kr has a larger effective nuclear charge than Ar for n=3. Wouldn't that mean Kr... more
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Periodic Table Biology Valence Electrons

09/17/19

Elements sharing valence electrons
I would like to know why it is that when elements share valence electrons, unless the elements are nonpolar, one element gets more time with the valence electrons.
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Periodic Table Science

11/27/18

WWhat does the oxygen family have in common with each other?nWhy are these elements in the mixed family?
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Periodic Table

07/27/18

please answer
which has higher ionisation enthalpy and why Be+ and Be
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Periodic Table

07/27/18

please answer
how many of following have greater z-effective than silicon atom   Na,Mg,Al,P,Cl,S,N,O,C,F
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07/02/18

Physical Science Math
Bismuth and fluorine react to form bismuth fluoride. If 417.96 g of bismuth reacts completely with 113.99 g of fluorine, how many grams of bismuth fluoride are formed?
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Periodic Table

03/29/18

oxygen and sulfur are in the same group
 plese help me with this
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Periodic Table Chemistry Mass

11/15/17

what is the empirical formula?
the compound xylene consists of 90.49% C and the rest is hydrogen.What is the empirical formula?
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Periodic Table Chemistry Moles

11/14/17

determine the mass of each sample
1.16 mmol carbon disulfide
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Periodic Table Chemistry

07/18/17

Periodic Elements related doubt
why are the 4 elements in the periodic table have not been found?
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Periodic Table Chemistry

11/15/16

Periodic Table related doubts
If the ionic radii of each K+ and F– are 1.34Å, then the atomic radii for K and F will be
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Periodic Table Chemistry Elements

10/30/16

List an element that fits in each of the following groups.
Halogen = Alkali metal =  Lanthanide series = Transition metal = Chalogen = Noble gas = Alkaline Earth metal = Actinide series =
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Periodic Table Chemistry Isotope Research

10/22/16

How are potassium-39, potassium-40, and potassium-41 different from each other? Write the isotope symbol for each?
How are potassium-39, potassium-40, and potassium-41 different from each other? Write the isotope symbol for each?
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Periodic Table

10/11/16

The ionisationenergy and electron affinity of an element are 13.0eV and 3.8eV Its electronegativity??
here are the options  2.8 3.0 3.5 4.0 please do show the steps to solve the problem too...
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Periodic Table Chemistry

01/12/16

Why is the 2nd ionization energy of Aluminum higher than that of Silicon?
According to the ionization energy periodic table trend, silicon's should be higher but its. 
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Periodic Table

10/02/15

Why does electronegativity increase as effective neutral charge increases?
I know that electronegativity is the ability to attract shared electrons and that effective neutral charge is the pull of the nucleus on outer electrons based on my notes. But I'm not really sure... more
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