why dose higher atomic weight elements in the firsts two groups in the periodic table  r(alkaline and alkaline earth metals have lower electron attraction power /atomic size than non metals in  the last two groups -except the noble gases - even when they have higher atomic number and masses -take sodium as an examole to metals and oxygen to non-metals

Q: (a) Group 1A positive + The elements in group 1A configuration. an electron (obtain a charge) in…

A: Concept: Group I A  is the alkali metal group. It includes Lithium, sodium, potassium, rubidium,…

Q: MCQ 118: In the Periodic table, the Alkaline earth metals are found in A. Period II B. Period III C.…

A: Ans C) group 11

Q: Complete the schematic diagram below showing the separation of Group I and Group II cations.

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Q: Ca+ (g) + e- --> Ca2+ (g) is the correct representation of the second ionization of calcium.…

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Q: Is astatine a nonmetal metal or metalloid

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Q: elemento Hydride of IIA graup B) MHy C) MH3 D) MH4 A) MH elements Hy dhide of TA group D) MH c) M,Hz…

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Q: The alkaline earth metal in the same row as neutral noble gas with 36

A: Element which is alkaline earth metal lie in same row of a Noble gas with 36 electrons.

Q: elements

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Q: For each of the following, give the most specific classification according to type of matter:…

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Q: Tellurium can form an anion with a 2- charge. What natural element would be isoelectronic to this…

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Q: What statement best describes how the periodic table is organized?     All elements in a period…

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Q: 1. Write the whole e- config for the element K. Also write the whole config for the ion K+ .

A: K is potassium with atomic number 19 .

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Q: Is this true or false why? Sodium and chlorine are both very reactive metals

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Q: Mu, is an imaginary alkaline earth metal with atomic number 120 and Ts, is a halogen with atomic…

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Q: In element form, antimony (Sb) and bismuth (Bi) are both brittle, crystalline solids at room…

A: Sb,Bi both are brittle,crystalline solids are room temperature  and poor conductor of electricity.

Q: what is the elemental form of fluorine? F(g) F- (aq) F+(g) or none of the these?

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Q: gro periodic lable WUuI snonnɔuLƏUn element :X: be found Alkali metals .A O .B O Halogens .C O…

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A: Hydrogen is an element that is present in Group 1A (or) group 1 of the periodic table. Halogens…

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Q: 1. Which element will have a stronger coulombic force of attract; Phosphorus (P) or Sulfur (S)? a.…

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Q: Which of the following is atransition metal? A. Barium B. Mercury C.     Cesium   D. Aluminium

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Q: 3. What type of elements form ionic bonds with metals?

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Q: Rank the following elements by electron affinity, from most positive to most negative EA value

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Q: Identify the true statements concerning the atoms andions of the group 6A elements.  (a) The ionic…

A: Identify the true statements concerning the atoms and ions of the Group 6A elements.

Q: Which element is solid at room temperature and a good conductor of heat and electricity

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Q: Choose Metals, Metalloids ,Non-metals ( Os , N , Ge , Si , Te , Cs , S , He )

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Q: have the lowest fest lonization energles of the groups listed. O Transition elements O Alline earth…

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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.