- What patterns do you see in all of the compound models?

Alomic Radii of the First 86 Elements Atomic Numnber 4. Whzistagenora rond foratomic radus as you qo down tho noble gas tamily? 5. Whzisho ganaral trand as you movo through periad 3(om alamant 11 sa domom 183 16. Carbon(z-6]and noan z=10j boh havo har ausermosdacors in 2b arbitals. Eplan winy noo mallor than carbon ovon though ithasmaro olactons 7. The graph shows a suddan inceasa in atomicradus lor lithunm sadum, aotassium, nubidium, and casium. Explain why than isaspike ontho graph at alamantnumbas 3,11. 19.37.and 5 Alomic Radius (pm)

Na :S f. F NO2

4. Yo momma studies the properties of four ionic compounds: NaCl, KBr, CaS, a lonic Compound Elements and Their Properties Na shiny, conductive; Cl - gas, nonconductive K-shiny, conductive; Br - liquid, nonconductive Ca - shiny, conductive; S- dull, nonconductive IMg - shiny, conductive; O-gas, nonconductive NaCl KBr CaS MgO What can she conclude about the elemental compositions of ionic compounds? A. They contain metallic and transition elements. B. They contain metallic and nonmetallic elements. C. They contain semimetallic and metallic elements. D. They contain semimetallic and nonmetallic elements. 5. Vanessa measures the melting points of four substances. She records the melting p- Substance Melting Point (°C) NaCl 801 KBr 734

What is the major problem with the equation Ca (s) + 2 H₂0 (1) -> Ca(OH)2 (aq) + H₂ (g)? Select one: O a. Calcium cannot react with water Ob. The states given for these materials are incorrect c. The hydrogens and oxygens are in different proportions on the two sides O d. The formula for calcium hydroxide is incorrect Oe. Nothing: it is fine as it is

pnc.com/women O Dashboa x Course X O The Wav x E CP grou X M Docume x E 3- Qual X G If you ha Xx course.html?courseld=16985674&OpenVellumHMAC=624ef941a8d 10e711a39b3488025ef9a#10001 v Correct S has 16 electrons. The noble gas that precedes S on the periodic table is neon, so the inner electron configuration is [Nel. Obtain the outer electron configuration by tracing the elements between Ne and S and assigning electrons to the appropriate orbitals. Because S is in row 3, as you trace across the row to S, which is in the third column of the p block, add two 3s electrons and three 3p electrons. As a result, the electron configuration for S is (Ne 3s 3p Part B Se Express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. For example, He 2s 2p? should be entered as [He]2s^22p^2. Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part C P Pearson Copyright © 2021 Pearson Education Inc. All…

(3d53c Maps T T TI 14 ancing Equations Challeng ical formula. ient. h chemical formula. CO2 How many atoms of each element are in the formula shown? 0= 2Na,SO, ach element a shown? How many atoms cach are in the formula Na =

(b) Consider the following energy changes:

9A Complete the figure below. NBS ROOR A H -Na B Na Na

How to Calcula nVellumHMAC=20ff3692a9b8f8628f99c8c00d38dabd#10301 ps Translate EReading list I Review | Constants Periodic Table VWI IICIT IS Tepiesentu vy 4a T O.I IaIly, uie iast prlast Slales UIEIT auueu lu o, "gives 60," which is the term = 60 to create 4x + 8 = 60. in to Part D You know that a number 8 less than 60 is the number 52. So, you could rewrite your answer. from the previous part as, "What number can you multiply by 4 to get 52?" This is just the definition of 52 divided by 4! So, what is the number x you are looking for? Express your answer as an integer. V AZO ? Submit Request Answer Next > Provide Feedback P Pearson ...