Homework Answers
Solution:
Berylllium
Explanation:
The expected element with atomic mass 120 is expected to be a s-block element and the second element in the 8th period. It is expected to be an alkaline earth metal.
Beryllium is also a s-block element and alkaline eart metal.
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Part A From its electronic configuration, predict which of the first 10 elements would be most...
Hydrogen 1H 2- Atomic number He Helium - He Mass number First shell Element symbol- Electron-...
Hydrogen 1H 2- Atomic number He Helium - He Mass number First shell Element symbol- Electron- distribution diagram Lithium Beryllium Carbon Boron 3B Oxygen Nitrogen en N Fluorine انار Neon Be 10 Ne Second shell Sodium 11 Na Aluminum AI Sulfur Magnesium 12Mg Chlorine Phosphorus Silicon 1 Si Argon Ar Third shell According to the section of the Periodic Table of Elements above, which element is most likely to have similar chemical properties to carbon Selected Answer: C. Phosphorus Answers:...
Hydrogen - Atomic number Helium - He He 4.00 First Mass number Element symbol shell Electron-...
Hydrogen - Atomic number Helium - He He 4.00 First Mass number Element symbol shell Electron- distribution diagram Lithium Beryllium Be Boron Carbon Fluorine 6C Nitrogen N Neon 10 Ne Second shell Silicon Sodium 11 Na Aluminum Phosphorus Magnesium 12 Mg Chlorine 17C1 Argon 18Ar 14Si 1SP Third shell According to the section of the Periodic Table of Elements above, which element is most likely to have similar chemical properties to carbon? A. Nitrogen OB. Silicon C. Phosphorus D. Boron
Part A Write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and...
Part A Write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (C6H12O6) and oxygen gas. Express your answer as a chemical equation. Identify all of the phases in your answer. FAQ R O ? Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
1. Use the following chart of boiling and melting point temperatures to answer the following questions....
1. Use the following chart of boiling and melting point temperatures to answer the following questions. Notice that the melting and boiling points can be grouped into two categories: those that occur at relatively low temperatures and those that occur at relatively high temperatures. Elemental form Melting point Boiling point Name H2 He 13.81 KL 0.95 K 20.28 K 4.22 K | hydrogen helium L i(s) 453.65 K 1615 K lithium Be(s) 1560 K 2744 K beryllium B(s) 2348 K...
You will need to copy/paste the files Elements.txt and Diamonds.txt from Module 13 folder into your...
You will need to copy/paste the files Elements.txt and Diamonds.txt from Module 13 folder into your CodeBlocks project folder. PA 13-1 (25 points) The file, Elements.txt, lists information about chemical elements. The information included in six columns is Atomic Number, Symbol, Name, Atomic Weight, Density (gm/cm), Year discovered. Read in and display the first 10 elements in Elements.txt. G:\CodeBlocks-EP\Marsh2050\bin\Debug Marsh2050.exe 1 H Hydrogen 1.007900 0.090000 1776 2 He Helium 4.002600 0.180000 1895 3 Li Lithium 6.941000 0.530000 1817 4 Be...
Completing and Balancing Neutralization Reactions 10 of 18 For example, if you have a cation with...
Completing and Balancing Neutralization Reactions 10 of 18 For example, if you have a cation with a 1+ charge and an anion with a 2-charge, you will need two cations to balance the charge: I(1+ charge on cation)(2)]+[(2-charge on anion)(1)) = (+2) + (-2) = 0 Complete the following statements regarding the number of cations and anions present in the various ionic compounds. Match the numbers to the appropriate blanks in the sentences below. Make certain each sentence is complete...
which elements have a partially filled p sub level in in their electron configurations please help with these q...
which elements have a partially filled p sub level in in their
electron configurations
please help with these questions from the pictures. Thanks !
MODE ctaionont 16. In which of the following bonds does sulfur have a partial negative charge (8-)? oecies E) S-C D) Si-S C) S-CI A) O-S B) F-S 17. Arrange the following bonds in order of increasing polarity: O-H, C-H, F-H, H-H A) O-H<C-H < F-H < H-H B) C-H<O-H < F-H< H-H C) H-H <C-H...
Hydrogen 1H 2- Atomic number He Helium - He Mass number First shell Element symbol- Electron- distribution diagram Lithium Beryllium Carbon Boron 3B Oxygen Nitrogen en N Fluorine انار Neon Be 10 Ne Second shell Sodium 11 Na Aluminum AI Sulfur Magnesium 12Mg Chlorine Phosphorus Silicon 1 Si Argon Ar Third shell According to the section of the Periodic Table of Elements above, which element is most likely to have similar chemical properties to carbon Selected Answer: C. Phosphorus Answers:...
Hydrogen - Atomic number Helium - He He 4.00 First Mass number Element symbol shell Electron- distribution diagram Lithium Beryllium Be Boron Carbon Fluorine 6C Nitrogen N Neon 10 Ne Second shell Silicon Sodium 11 Na Aluminum Phosphorus Magnesium 12 Mg Chlorine 17C1 Argon 18Ar 14Si 1SP Third shell According to the section of the Periodic Table of Elements above, which element is most likely to have similar chemical properties to carbon? A. Nitrogen OB. Silicon C. Phosphorus D. Boron
Part A Write a balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and liquid water react in the presence of chlorophyll to produce aqueous glucose (C6H12O6) and oxygen gas. Express your answer as a chemical equation. Identify all of the phases in your answer. FAQ R O ? Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
1. Use the following chart of boiling and melting point temperatures to answer the following questions. Notice that the melting and boiling points can be grouped into two categories: those that occur at relatively low temperatures and those that occur at relatively high temperatures. Elemental form Melting point Boiling point Name H2 He 13.81 KL 0.95 K 20.28 K 4.22 K | hydrogen helium L i(s) 453.65 K 1615 K lithium Be(s) 1560 K 2744 K beryllium B(s) 2348 K...
You will need to copy/paste the files Elements.txt and Diamonds.txt from Module 13 folder into your CodeBlocks project folder. PA 13-1 (25 points) The file, Elements.txt, lists information about chemical elements. The information included in six columns is Atomic Number, Symbol, Name, Atomic Weight, Density (gm/cm), Year discovered. Read in and display the first 10 elements in Elements.txt. G:\CodeBlocks-EP\Marsh2050\bin\Debug Marsh2050.exe 1 H Hydrogen 1.007900 0.090000 1776 2 He Helium 4.002600 0.180000 1895 3 Li Lithium 6.941000 0.530000 1817 4 Be...
Completing and Balancing Neutralization Reactions 10 of 18 For example, if you have a cation with a 1+ charge and an anion with a 2-charge, you will need two cations to balance the charge: I(1+ charge on cation)(2)]+[(2-charge on anion)(1)) = (+2) + (-2) = 0 Complete the following statements regarding the number of cations and anions present in the various ionic compounds. Match the numbers to the appropriate blanks in the sentences below. Make certain each sentence is complete...
which elements have a partially filled p sub level in in their
electron configurations
please help with these questions from the pictures. Thanks !
MODE ctaionont 16. In which of the following bonds does sulfur have a partial negative charge (8-)? oecies E) S-C D) Si-S C) S-CI A) O-S B) F-S 17. Arrange the following bonds in order of increasing polarity: O-H, C-H, F-H, H-H A) O-H<C-H < F-H < H-H B) C-H<O-H < F-H< H-H C) H-H <C-H...
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