Question

for each of the following circle the correct element. li bi s metal n p as smallest ionization energy k ca sr largest atomic mass s cl ar member of the halogen family al si p greatest electronegativity mg al si largest atomic radius v nb ta largest atomic number te i xe member of noble gases si ge sn 4 energy levels li be b member of alkali metals as se br 6 valence electrons h li na nonmetal hg ti pb member of transition metals na mg al alkaline earth metal pb bi ge metalloid b c n gas at room temperature ca ba ti will have a +2 charge

Explanation:

Step 1: Recall periodic table properties

For each property (metal, ionization energy, atomic mass, halogen, electronegativity, atomic radius, atomic number, noble gas, energy levels, alkali metal, valence electrons, non - metal, transition metal, alkaline earth metal, metalloid, state at room temp, charge), we use the periodic table trends:

• Metal/Non - metal/Metalloid: Based on group (e.g., group 1 - alkali metals (metals), group 17 - halogens (non - metals), group 18 - noble gases (non - metals), metalloids along the staircase).
• Ionization energy: Decreases down a group, increases across a period.
• Atomic mass: Generally increases down a group.
• Atomic radius: Decreases across a period, increases down a group.
• Electronegativity: Increases across a period, decreases down a group.
• Valence electrons: Equal to group number for main group elements (group 1 - 1, group 2 - 2, group 13 - 3, group 14 - 4, group 15 - 5, group 16 - 6, group 17 - 7, group 18 - 8 (except He)).
• Energy levels: Equal to period number.
• Charge: Main group metals (group 1 - +1, group 2 - +2, group 13 - +3 etc.), non - metals gain electrons to achieve octet.

Step 2: Apply the trends to each row

For each row of elements and the associated property, we compare the elements based on the relevant trend. For example, in the row with Li, Bi, S and the property "metal", we know that Li is in group 1 (metal), Bi is a metalloid, S is a non - metal, so Li is the correct choice.

Answer:

Let's analyze each row:

1. Li, Bi, S - metal: Li (Lithium) is an alkali metal. Bi is a metalloid, S is a non - metal. So Li is correct (circled as in the image).
2. N, P, As - smallest ionization energy: Ionization energy decreases down a group. As is below P and N in group 15. So As is correct (not circled in the image, but the correct one is As).
3. K, Ca, Sr - largest atomic mass: Atomic mass generally increases down a group. Sr is below Ca and K in their respective groups. Sr has a larger atomic mass than K and Ca. So Sr is correct (circled as in the image).
4. S, Cl, Ar - member of the halogen family: Halogens are group 17 elements. Cl is in group 17. S is group 16, Ar is noble gas (group 18). So Cl is correct (circled as in the image).
5. Al, Si, P - greatest electronegativity: Electronegativity increases across a period. P is to the right of Si and Al in period 3. So P is correct (not circled in the image, correct is P).
6. Mg, Al, Si - largest atomic radius: Atomic radius decreases across a period. Mg is to the left of Al and Si in period 3. So Mg is correct (circled as in the image).
7. V, Nb, Ta - largest atomic number: Atomic number increases down a group. Ta is below Nb and V in group 5. So Ta is correct (circled as in the image).
8. Te, I, Xe - member of noble gases: Noble gases are group 18. Xe is in group 18. Te is group 16, I is group 17. So Xe is correct (circled as in the image).
9. Si, Ge, Sn - 4 energy levels: Ge has electron configuration with 4 energy levels (Si has 3, Sn has 5). Wait, Si: 1s²2s²2p⁶3s²3p² (3 energy levels), Ge: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p² (4 energy levels), Sn: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p² (5 energy levels). So Ge is correct (not circled in the image, correct is Ge).
10. Li, Be, B - member of alkali metals: Alkali metals are group 1. Li is group 1. Be is group 2, B is group 13. So Li is correct (circled as in the image).
11. As, Se, Br - 6 valence electrons: Se is in group 16, which has 6 valence electrons. As is group 15 (5), Br is group 17 (7). So Se is correct (circled as in the image).
12. H, Li, Na - nonmetal: H is a non - metal. Li and Na are metals. So H is correct (circled as in the image).
13. Hg, Tl, Pb - member of transition metals: Hg is a transition metal (group 12). Tl is post - transition, Pb is post - transition. So Hg is correct (circled as in the image).
14. Na, Mg, Al - alkaline earth metal: Alkaline earth metals are group 2. Mg is group 2. Na is group 1, Al is group 13. So Mg is correct (circled as in the image).
15. Pb, Bi, Ge - metalloid: Ge is a metalloid. Pb and Bi are metals (Pb is post - transition, Bi is metalloid? Wait, Bi is a metalloid, but Ge is also a metalloid. Wait, the options: Pb (metal), Bi (metalloid), Ge (metalloid). But among them, Ge is a typical metalloid. So Ge is correct (circled as in the image).
16. B, C, N - gas at room temperature: N is a gas at room temperature. B is solid, C is solid (except some allotropes, but at room temp, C is solid). So N is correct (not circled in the image, correct is N).
17. Ca, Ba, Ti - will have a +2 charge: Ca (group 2, +2), Ba (group 2, +2), Ti (transition metal, can have +2 but Ca and Ba are more likely to have +2. But among them, Ca and Ba are alkaline earth metals with +2. If we consider the options, Ca or Ba. But Ba is below Ca, and both have +2. But the image might have a typo, but the correct ones for +2 charge among these are Ca and Ba (alkaline earth metals).