Element M reacts with sulfur to form an ionic compound with the formula M2S. Element M is more reactive than sodium in a similar reaction and has a smaller radius than rubidium. The unknown element M is: Cs Mg Cl K

Q: 7.130 Element M is a shiny and highly reactive metal (melting point 63°C), and element X is a highly…

A: The balanced chemical reaction for this displacement reaction is  MX  + Cl2   → X2   +   MCl Their…

Q: 15. A student drew atomic models of four elements. Tin, because it has five energy levels with four…

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Q: A chemical reaction occurs in three stages. Each stage consists of a mix of positively and…

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Q: 4. a. Calcium and oxygen react together to form calcium oxide. During the reaction two electrons…

A: For ca2+ arrangements of electrons 2,8,8

Q: A 1.50-g sample of Na2SxO6 contains 6.68 x1021 sodium ions. Determine the value of x.

A: Given details, The mass of Na2SxO6 = 1.50 g Then, Na2SxO6 has two sodium ions.  Na2SxO6 having 6.68…

Q: Identify an element that would have similar properties as magnesium (Mg). Explain your choice and…

A: The element that has the similar properties like magnesium is -

Q: 2. The atoms of which element would have the largest atomic radius? A. Calcium B. Strontium 3. Which…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: What is this element? [Ne] 3s2 * a. Neon b. Magnesium C. Aluminum d. Potassium As you go farther…

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Q: Does the Aluminum (Al) ion gain or lose electrons? a Lose because it is easier for Aluminum (Al) to…

A: Al have 13 electron and 3 electron in it's valence shell. It is element of boron family. Noble gas…

Q: 5. What element has 25 electrons when it forms a cation with a 2+ charge?

A:

Q: Energy of 1st Energy Level (n=1) Energy of 2nd Energy Level (n=2) ELEMENT AE change of EnergY He 3 5…

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Q: Is this impossible to have element or not? n = 7 ; l = 6 ; m = 5 ; s = - 1/2

A: An electron has wavefunction which is an address

Q: Which atom is the smallest? ΟΝ 00 OP OS

A: The modern periodic table is composed of 18 groups and seven periods. The physical and chemical…

Q: Which pair of elements below should be the most similar in chemical properties?   Cs  ,  He I…

A: If element belong to same group then it's chemical properties is mostly same.

Q: a. Describe the differences between an a particle, a ß particle, and a y ray. Which has the greatest…

A: In radioactive decay, an unstable isotope is converted into stable isotope with emission of α…

Q: 3. The blue color in fireworks is due to copper (I) chloride , (CuCI), is heated at a temperature of…

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Q: Determine the balanced reaction of element A (white circles) with element E (gray circles) as…

A: According to the question, wight circles represent element A, gray circles represent element B. From…

Q: 9: Which of the following is an alkali metal? A) Zr B) Rb C) Cs D) Te 10: The symbols for Potassium,…

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Q: a ) Eva l u a te t h e expre s s i o n s 2 x 1, 2 x (1 + 3),2 x(1 + 3 + 5), and 2 x (1 + 3 + 5 + 7).…

A: In the expression, the total number of valence electron is calculated in which 2 is the number of…

Q: Which of the atoms listed below has the largest radius? Multiple Cholce Sb Se

A: Answer -  option (1) Sb atom has the largest radius.

Q: 2 / 8 118% a) Loss of electron b) loss of hydrogen c) addition of oxygen d)addition of electron A…

A: (A-6) Coulombic charge and current related with each other by following formula - Q = I t Here - Q =…

Q: What is the ionic charge of these elements?  Ca, K, Al, Mg,  S,  O,  P,  F

A: Given  Element         = Ca , K ,Al ,Mg ,S ,O, P ,F  Ionic Charge  =  ?

Q: Element M reacts with sulfur to form an ionic compound with the formula M2S. Element M is more…

A: From the reactivity of metals and radius we can find unknown metal M.

Q: Ammonia is a gas with a characteristic pungent odor. It is sold as a water solution for use in…

A: Given information,

Q: When two He atoms undergo fusion in a star, the resulting element is: A) H B) Li C) Be

A: In fusion reactions, two light atomic nuclei fuse together to form a heavier nucleus and release a…

Q: Determine the missing physical properties for eka-A. Element •Element A melting point (°C) N/A…

A: Eka-A is eka-aluminium which is replaced by Gallium.

Q: 2Mg (s ) + O (g ) 2MGO (s) Magnesium (Mg) reacts with oxygen gas (O) to produce magnesium oxide…

A: Given Reaction2 Mg (s) + O(g)  → 2 MgO(s)Correct movement of electron = To be determined

Q: Which of the following elements has the smallest value of IE3? Select the correct answer below: Na…

A: Introduction : Ionisation energy is defined as the amount of energy required by an isolated gaseous…

Q: ATOMS Electronic Atomic Configuration- only with the highest atomic Name of PRODUCTS Element/s…

A: Given products: Evaporated milk. NFA rice

Q: Of the following elements, the one with the largest atomic radius is____ A)aluminum  B)calcium…

A:

Q: Given these reactions, where X represents a generic metal or metalloid 1) H, (g) + 0,(g) H,O(g) AH,…

A: The ΔH of the desired reaction can be determined using Hess’s Law. According to Hess’s Law, if a…

Q: Consider two identical metal spheres, A and B. Sphere A carries a charge of – 48 µC and sphere B…

A: As two sphere touches to each other, negative charge will be transferred from the sphere with a…

Q: 5. A physics teacher rubs a glass rod and a cotton cloth together. Identify the following statements…

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Q: MCQ 18: The clements of group II are A. metals B. non-metals C. alkalis D. noble gases

A: Till now we have 118 elements which are arranged in a tabular form which is called as periodic…

Q: what are 2 incompatible elements? are calcium and chlorine incompatible?

A: Rubidium, Barium, Uranium, and Lanthanum are incompatible elements.

Q: Sodium (Na) has 2 electrons in its inner shell, 8 in its next shell and I in its outer shell. What…

A: An atom is the basic and fundamental unit of matter. An atom consists of electron and the nucleus in…

Q: Which of the following atoms has the greatest difference between IE3 and IE4? N Al P B

A: Ionization energy of an atom is defined as the energy required to remove an electron from its…

Q: B AI Ga TI In Smallest Atom Largest Atom

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

Q: 47. Of the elements shown in the Periodic Table, which is the most reactive? III IV V VI VII I I Li…

A: Most reactive element is Potassium(K). This is alkali metal so reactivity is highest. Option (d) K…

Q: АТOMS Electronic Configuration- only with the highest atomic Name of Atomic PRODUCTS Element/s…

A: Cooking oil generally consists of iron, copper, sodium, manganese, calcium, and potassium. Chicken…

Q: Gold is very malleable which means it can be pounded into very thin sheets. Decorative gold leaf can…

A: The Diameter of the gold atom = 1.4 x 10-10 m The thickness of the gold sheet = 0.10 µm =0.10 x 10-6…

Q: If abbreviated as 24Na2+ 1 atom of this substance would have____ protons,____neutrons, and____…

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Q: Question 3 (02.06 LC) Three sections of the periodic table are labeled A, B, an

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Q: How is an atom of the element xenon (Xe) likely to act during a chemical reaction? It will likely be…

A: the correct option is as follows:

Q: Classify each element as a metal or nonmetal. Metal Nonmetal Answer Bank Mg Вг Ne Ag Zn

A: Metal are species which can donate electron whereas non-metal are those which can accept electron.

Q: Elements in the same period • A. have the same number of protons. B. have the same principal quantum…

A: Choose the correct option---

Q: Which of the following elements requires the least energy to remove an electron? As N P Sb

A: Which element required least energy to remove electron ?

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.