Aluminum and gold atoms have the same packing pattern, which is shown to the rig

Question

Aluminum and gold atoms have the same packing pattern, which is shown to the right. If the size of gold and aluminum atoms is about the same, what is then true? (A) Aluminum and gold have the same density. (B) Aluminum Is denser than gold. (C) Gold is denser than aluminum. (D) Nothing can be concluded about these densities. What is occurring in the process below? (A) Compounds are forming a compound. (B) Elements are forming a compound. (C) Compounds are forming a mixture. (D) Elements are forming a mixture. What is the name of HClO_2(aq)? (A) hydrochloric acid (B) hypochlorous acid (C) chlorous acid (D) chloric acid How many protons and electrons are in an oxygen-18 atom? (A) (B) (C) (D)

Explanation / Answer

1. Gold is denser than aluminium .

2. Elements forming a compound

3. Chlorous acid

4. number of protons in Oxygen 18 atom = 8 . and number of electrons in oxygen 18 atom = 8

and so all your answers are correct

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