Use the periodic table to give the name and symbol for each of the following elements:(a) the noble gas in the same period as germanium(b) the alkaline earth metal in the same period as selenium(c) the halogen in the same period as lithium(d) the chalcogen in the same period as cadmium

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A: Elemental symbol for lead is Pb and it should be Pb .

Q: Give the systematic names for the formulas or the formulas for the names: (a) CoO; (b) mercury(I)…

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Q: the symbol of the halogen with the most electrons Express your answer as a chemical symbol. ΑΣφ ?

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Q: Which of the following exists in nature as a diatomic molecular element?  Group of answer choices…

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Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

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Q: What is identity of an ion having 32 protons, 30 electrons and 40 neutrons?

A: Given : number of protons = 32 number of electrons = 30  and number of neutrons = 40

Q: Which of the following gases are elements? O NH, O 0, O N,0 Rn Ar O 0, so, O H,S HCN NO NO, O He

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Q: Copper has 2 stable isotopes, namely Cu-63 and Cu-65. The atomic masses of the said isotopes are…

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Q: Which of the following could describe an element?   I II III All of them None of them

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Q: Give the formula and charge of each of  the following cations: magnesium, zinc, iron(ili),…

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Q: - Argon has three naturally occurring isotopes: 0.337% 36Ar, 0.063% 38Ar, and 99.60% 4ºAr. Estimate…

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Q: Choose the letters that apply: Which of the following connotes FAR from the real forms or existence…

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Q: Iron exists in nature as a mixture of predominantly three isotopes: 54, (53.94 amu), 5® 26FE (55.93…

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Q: Which of the following statements is always true? A All representative elements are nonmetals. All…

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Q: 2. Write the symbol for each element · aluminium sulfate · kidney stones • component of teeth and…

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Q: What is the chemical symbol of the alkaline earth metal in the same period as chlorine?

A: Given  chemical symbol of the alkaline earth metal in the same period as chlorine

Q: True or false is an atom is the smallest building block of matter

A: False

Q: Which of the following elements is not a representative element? O Nickel Cadmium Silicon O Barium

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Q: 3. Which one of the following is a monoatomic element? a) oxygen b) iodine c) argon d). nitrogen

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Q: In which group on the periodic table is Iron? O Alkali metal O Halogen Alkaline earth metal O…

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Q: potassium has three stable isotopes k-39, k-40 and k-41 but k-40 has a very low natural abundance.…

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Q: In the periodic table, calcium, element 20, is surrounded by elements 12 magnesium , 19 potassium,…

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Q: Which of the following statements is not true about the element potassium? Group of answer choices…

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Q: In the periodic table, do the chemical properties change more than through a period or through a…

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