E is a made up element and contains 6 valence electrons Y is a made up element and contains 7 valence electrons   Calculate the number of valence electrons in EY2

Q: predict the charge of each element based on its position on the periodic table P Na S Cl Mg O…

A: Predict the charge of the given ions-

Q: identify the follwing atoms using their symbols d.the fifth period transition metal with properties…

A: d.the fifth period transition metal with properties similar to copper = Ag   e. the group V A…

Q: Write the full electron configuration for each element.a. Si b. O c. K d. Ne

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: which of the following statements is not part of Dalton's original atomic theory?  all atoms of one…

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Q: Family # of Valence E- Reactivity Metal/Nonmetal Alkali High reactivity Metals Halogens Noble Gases

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Q: An element X has 16 protons (p+1); 16 electrons (e-1) and 16 neutrons (n0). b) What is the period…

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Q: ö: j y- :0 :0 :0= :o:

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Q: 1. How many calories are released when 100. g of steam condenses? The heat of condensation for water…

A: Given: Mass of water = 100 g The heat of condensation for water = 540 Cal/g

Q: 66. Which element do you expect to be most like magnesium? Why?(a) potassium(b) silver(c) bromine(d)…

A: Magnesium = Its atomic number is 12, and present in Group 2 in the periodic table.

Q: For each element, give the following information: [1] total number of electrons; [2] group number;…

A: a) The total number of electrons in oxygen is 8. Oxygen belongs to group 16. The number of valence…

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Q: Determine whether each element is a main-group element.a. tellurium b. potassiumc. vanadium d.…

A: Main group elements are the elements of s and p block. In s-block , group 1 and group 2 are present.

Q: 8. Which pair of elements do you expect to be most similar in their chemical properties? a) K and Fe…

A: Most similar in their chemical properties

Q: 67. Which pair of elements do you expect to be most similar? Why?(a) Si and P(b) Cl and F(c) Na and…

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Q: Give the electron-dot symbol for each element: (a) bromine; (b) lithium; (c) aluminum; (d) sulfur;…

A: Electron-dot symbol or Lewis structure is a way of representing the valence electrons of the atom.…

Q: predict the charge of an element based on it's position on the periodic table P  Na S  Cl  Mg…

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Q: 60. Determine the charge of the cation in the ionic compounds a. Cu20 b. MnSO4

A: • For an isolated molecules , the oxidation number tells about the charge of any atom in molecules.…

Q: Which of the elements listed below would have atoms with the largest atomic radius? * O Indium O…

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Q: Of the following four elements which pair has atoms closest in size? Na, K, Mg & Ca O Na & Mg O Mg &…

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Q: Q4. Which element is a main-group metal with an even atomic number?(a) K (b) Ca (c) Cr (d) Se

A: To find: The main group metal with an even atomic number.

Q: Group the elements into pairs that would most likely exhibit similar chemical properties. It does…

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Q: a) What is the chemical symbol of this element? b) Write the electron configuration of 'X'. c) Write…

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Q: Predict the charge of the ion formed by each element.a. O                    b. K              c. Al…

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Q: 9. An isotope of an element is dependent on A. Protons B. Neutrons C. Protons and neutron D.…

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: Arrange the following elements according to the increase in their atomic sizes; (0, S, Se) S> Se >0…

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Q: Identify the following atoms using their symbols: a. contains 20 protons b. contains 12 electrons…

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Q: Amazing news! Chemists have just discovered a brand new element on an asteroid. Calculate the…

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Q: 5. Silicon (Si) is in period 3 on the Periodic Table. What does this tell you about this element? O…

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Q: The category of includes the majority of the elements on the periodic table. : Metals : Nonmetals :…

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Q: Which element is not a main-group element?a) Se                      b) Mo                     c) Sr…

A: Main-group elements: S-block and P-block elements are knows as main-group elements. They are,…

Q: Be He Ca C As Ne F S In Sn Xe Li Sb Te

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Q: 100. Identify the group of elements with these characteristics: a. This group of elements has a…

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Q: Which element has 3 valence electrons in the third shell (n=3) a. Al b. N c. P d. Mg e. Cl

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Q: In chemical reactions, sodium (Na) is more likely to behave similarly to which element?   a.…

A: Chemical properties of the element depends upon the valence shell electronic configuration. Elements…

Q: : Provide an example for each of the following A) S-block element B) P-block element c) d-block ele…

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Q: Which elements have more protons per atom than phosphorus? A bromine and sulfur B helium and…

A: Atomic number = number of protons  Atomic number of phosphorus(P) =15  So, it has 15 protons per…

Q: Which pair of elements do you expect to be most similar? Why?a) N and Nib) Mo and Snc) Na and Mgd)…

A: The elements belonging to same group will have similar properties.

Q: B AI Ga TI In Smallest Atom Largest Atom

A: We have to arrange atom based on their size.

Q: Identify these elements based on their locations in the periodic table. Give the symbol, not the…

A: The standard periodic table consists of 7 horizontal rows called as periods and 18 vertical rows…

Q: What is the atomic number of an ion with a -2 charge when it has 18 electrons? a)40 b)18 c)20…

A: Introduction :  We have to tell the atomic number . Atomic number is sum of electron and protons .

Q: ● Type the letter of the element that is a halogen in the 2nd period A/ ● Type the letter of one…

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Q: 93. Which pair of elements have chemical properties that are the most similar? c. Cobalt and Copper…

A: The periodicity in the properties of the elements i.e, repetition of certain chemical properties of…

Q: Name each of the following oxides. Assuming that the compounds are ionic, what charge is associated…

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Q: The element which has four valence electrons is ________.( A) H B) Na C) Mg D) Si E) S

A: A valence electron is an outer shell electron that is associated with an atom, and that can…

Q: The element P has the atomic number 12. Element Q has the atomic number 16. What is the formula of…

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Q: Group I (the alkali metals) includes lithium (Li), sodium (Na), and potassium (K). These elements…

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Q: When neutral atoms lose electrons they become O anions O radioactive O negatively charged O…

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Q: On the Periodic Table, what do all the atoms in a specific column ( group) have in common? O number…

A: The vertical columns in the periodic table are referred as group.  There 18 groups in the modern…

Q: 12. Crde the elements below that are in the same group. N. Ne 13. Cirde all of the elements below…

A: Inorganic chemistry.

Q: Find a nonmetal element in the periodic table of elements that will completely cancel out the…

A: Atoms combine with each-other to attain stable noble gas electronic configuration which they do by…