Briefly explain why we do not observe elements with atomic numbers number of protons ) in...
For the following elements, give the numbers of protons, neutrons, electrons, atomic number, and mass number. a) Rn b) Sulfur-34 isotope Write the correct chemical formula and name of the ionic compound that forms from the following ions: a) Fe3+ and S2- b) Mg2+ abs P3- Write the chemical formula for the following compounds, and indicate which contain covalent bonds. a) Lithium nitride b) Carbon tetrafluoride c) Calcium sulfate
Atoms and Isotopes 1 Activity: Atoms and Isotopes Why? Atoms and isotopes are identified by the numbers of protons, electrons, and neutrons that they contain The number of protons, electrons, and neutrons in atoms determines the chemical properties of the elements .A knowledge of the number of protons and electrons in an atom will help you understand how atoms combine to form molecules Identify the composition of atoms in terms of protons, neutrons, and electrons Use atomic symbols to represent...
Energy Dispersive X-ray Spectroscopy: Explain why elements of low atomic number are difficult to be detected
- Parta Explain why atomic radius decreases as you move to the right across a period for main-group elements but not for transition elements Match the words in the left column to the appropriate blanks in the sentences on the right Reset Help proton larger As you move to the right across a row in the periodic table for the main-group elements, the effective nudear charge (Zl) experienced by the electrons in the outermost principal energy level resulting in a...
Why do we need DHCP and how does it work? Explain using your language (briefly, step by step).
6) Pure water cannot conduct electricity so why do we have to be care ful with electrical appliances near water in our homes? 7) List and explain the 3 partcles and 1 ray given off in radioactive decay and explain what they come from if neoessary. Also explain the effect on the nucleus when each decay happens. 8) If the solubility limit of sodium acetate (Molar mass 82 g/mol) at room temp is 76 grams per 100 grams of water,...
9. Explain why ionization energy decreases as you move down the noble gases from Helium to argon. 10. Sodium atoms are much larger than chlorine atoms, but sodium ions are much smaller than chloride ions. Why? 11. Compounds have been made from Xenon and Krypton, but not from other noble gases. Give a reason why you think this is true. 12. Based on energy changes involved in forming ions, why does Copper form both Cut and Cu2 ions but Sodium...
with steps 6) Pure water cannot conduct electricity so why do we have to be careful with electrical appliances near water our homes? 7) List and explain the 3 partcles and 1 ray given off in radioactive decay and explain what they come from if necessary. Also explain the effect on the nucleus when each decay happens. 8) If the solubility limit of sodium acetate (Molar mass 82 g/mol) at room temp is 76 grams per 100 grams of water,...
number 7,9 11 G hosh SOLO pho l ogen marin 6. Why do parents win Gs hit hepatomegaly? 7. Hundreds of mutations in the arme glucose phosphase Pave been discovered most result in small amors in amino acid ce fland on your introductory esposo protein structure, explain why this would impact the nume's function & What kind of bond do you think is broken to digest corristach be specific 9. In the comarch they, what is the solvent and what...
QUESTION 10 A(n) ____________ is a variety of an element with the same number of protons and electrons as the other types of the element but a different number of neutrons. 1 points QUESTION 11 Isotope fractionation occurs when a physical or chemical process causes the relative abundance of the isotopes in a sample of matter to change based on the count of the isotopes. True False 1 points QUESTION 12 Why does evaporation cause water vapor to...