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Q: 4. The correct electron-dot notation for C (atomic number 6) is .. 1) ·C ; 2) ·C..; 3) C., 4) -ċ. ..

A: The atomic number of carbon is 6. Its states that the carbon atom contains six protons and six…

Q: What element(s) are designated by each symbol or group of symbols? a. CU and Cu b. Os and OS c. Ni…

A: What element(s) are designated by each symbol or group of symbols? a. CU and Cu b. Os and OS c. Ni…

Q: Provide the atomic number, atomic mass, and name of theelement represented by each of the following…

A: The atomic number gives the total number of protons. Atomic mass is the sum of total number of…

Q: Atomic Radii of the First 86 Elements 300 250 200 150 50 10 Atomic Number .Whais tha ganora trond…

A: As per our guidelines we can only solve first three sub-parts. Please resubmit the other questions…

Q: The figure shown below shows the structure of cytidine, one of the essential components of RNA.…

A: given compound is cytidine. Order of element is :-  C , H , N , O

Q: 7.4.4 Which element, K or Ca, will have the greater IE1, which willhave the greater IE2, and which…

A: Solution :     Ionization energy is defined as the amount of energy required for the removal of an…

Q: what is the physical stare of Se? physical appearance of Se? what is the color of Se?

A: 1) Physical state of Se:  Selenium is a chemical element with symbol Se and atomic number 34.…

Q: 5. The radii of Na and Na* are 1.86 Å and 0.95 Å respectively (Å = angstrom = 10-10 m). Assume that…

A: Here we have to determine the volume of neutral sodium atom and sodium cation and percent change of…

Q: Symbol of the element having Z=31

A: element having atomic number (z)=31,is Gallium and symbol is 'Ga'

Q: Ivume: Density of Group 14 Element s Sn Pb 9.15g mass of element 27.11g 44.30g volume of H20 alme…

A: Volume of metal = (Volume of water+ element - Volume of water) Density = Mass / Volume

Q: Protons and neutrons have Mass .......... .... wwwww less O equal O high O Other O specific metal…

A: Atomic weight = 180gm/mole Density =16.6 gm/cm^3 ->it is BCC structure.

Q: 2. 10 5 Consider the element with the electron configuration [Kr]5s 4d 5p. This element is Select…

A:

Q: 04:- Who........ 1-Made the first real periodic table. na elements according to their propertie=…

A: We are authorized to solve only one question at a time. Please post the rest of the questions…

Q: How many protons are in the nucleus of an atom of each.( put  between each number ex, 12,24,10,5,3…

A: An atom can be considered as the smallest unit of any matter. An atom is composed of certain…

Q: Which atom is the smallest? ΟΝ 00 OP OS

A: The modern periodic table is composed of 18 groups and seven periods. The physical and chemical…

Q: 10. Which of the following does not match the others? 1.68 5 (A) 67.2 3.88 1 1000 100 10 1 AU,…

A: From the graph of number of electrons vs ∆UE, it is clear that the electronic configuration is 2, 2,…

Q: e nucleus plus the inner shells of electrons (non-valence) constitute the core of the atom. Core…

A:

Q: Bi-212  -->  electron  +

A: BETA MINUS DECAY: A beta decay in which neutron is cleaved to form proton and an electron is known…

Q: 1.4 39.6 2.45 1000 100 10 0.1 AU, (MJ/moI) #of electrons

A: Solution :     Photoelectron Spectra is used to remove an electron from any shell in the atom. We…

Q: Fill in the blanks:(a) The symbol and atomic number of the heaviest nonradioac-tive noble gas are…

A: The periodic table is the representation of elements that are arranged by atomic number, electronic…

Q: Naturally occurring magnesium has the following isotopicabundances: Isotope Abundance (%)…

A:

Q: a ) Eva l u a te t h e expre s s i o n s 2 x 1, 2 x (1 + 3),2 x(1 + 3 + 5), and 2 x (1 + 3 + 5 + 7).…

A: In the expression, the total number of valence electron is calculated in which 2 is the number of…

Q: Part A Given the following: x, X, X, and X. Which are isotopes of each other? x. X. x. and 2x are…

A:

Q: An alamert (atomic mas - 60) haing face-cantred cuaik aytalhas a danaty of 6.25 glem. what is the…

A:

Q: Which of the following is heteroatomic and hepta-atomic? O a. P205 Ob. N2H4 OC SF6 More Than One…

A: Hello. Since more than one question has been posted, the first question will be solved only. If all…

Q: Kuantum sayısı kümesi n= 1,1= 0, m = 0, m,= +1 n= 1,1= 3, m = +3, m; = +1/2 n = 3,1= 2, m, = +3, m,…

A: The set of numbers used to describe the position and energy of the electron in an atom are called…

Q: 8.48 (a) Why do successive IEs of a given element always in- crease? (b) When the difference between…

A: Ionisation energy is the amount of energy required to remove electron from an isolated gaseous atom.…

Q: Antimony belongs to Group SA. What is its correct a. b. Sb-

A: Antimony belongs to Group 5A. The correct electron-dot structure is                       Option d.…

Q: A fundamental relationship of electrostatics states that the en-ergy required to separate opposite…

A: To explain the below observations on the basis of electrostatic energy of charges. The IE₂of He is…

Q: Determine the missing physical properties for eka-A. Element •Element A melting point (°C) N/A…

A: Eka-A is eka-aluminium which is replaced by Gallium.

Q: I have an atom with 4 protons, 3 neutrons and 4 electrons, what is it's charge neutral negative…

A: proton = electron

Q: IDentify the element followy grond stute electon contigUatios Which have the as neutral Atoms HH A…

A: With the help of electronic configuration  , by counting number of electrons we can determine the…

Q: Consider the stable elements through lead (Z = 82). Inhow many instances are the atomic weights of…

A: Up to Z=82, there are three instances where atomic weights of the elements is reverse out of order…

Q: Identify the major difference and the major similarityamong isotopes of an element

A: Given information,   The major difference and the major similarity among isotopes of an element

Q: ealt Wsth mehs A mystery element is in the same period as Gallium (Ga). It has a smaller atomic…

A: The top elements of the reactivity series are highly reactive metals.

Q: What two pieces of evidence allowed the first calculation of me , the mass of the electron?(a) The…

A: Electron is a subatomic particle having electric charge negative.Electron has high q/m ratio than…

Q: Consider the pollowing at oms: A BCOEF Number of electrons 888910 9 Number of n atrons 8910 9810 nch…

A: Isotopes are atoms of same element having same atomic number (number of protons ) but different mass…

Q: Determine the percent abundance for J-67 and J-68, given the following data: The average atomic mass…

A: Isotopes which have same  number of protons but different number of neutrons.

Q: 3,1,0, + [Kr] 5s' 3d5 [He] 2s? 2p

A: According to guidelines I am supposed to answer first three part only please ask rest of the part as…

Q: preform a litmus tes for the following elements Na K

A:

Q: - 22 A copper atom has a mass of 1.06 × 10 g and a penny has a mass of 2.5 g. Use this information…

A: Number of atoms in 1 mole of copper = 6.022 × 1023 atoms  Mass of one atom of copper = 1.06 x 10-22…

Q: B AI Ga TI In Smallest Atom Largest Atom

A: We have to arrange atom based on their size.

Q: 15. The gas clou mostly hydroge cloud is irradiat produces a red causes the redo A. Nuclei of…

A: The gas clouds in space are mostly hydrogen gas wherever a gas cloud is irradiated by nearby stars,…

Q: The element 1s22s22p63s23p64s23d104p65s2 is    a. a halogen   b. an alkali metal   c. an…

A: Since the electronic configuration of the element given is   1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2

Q: 12. When elements from Group A combine with elements from Group C, these- compounds form- unalied…

A: The product formed when group A combine with the elements of Group C has to be given.

Q: Fill in the blanks to complete the following table.   Row Element Name Element Symbol Atomic…

A: Element name in rows are: Row 1:  Ag is the symbol for silver, with atomic number 47. Hence, element…

Q: An neutral atom hos an electron Con finuration Is° 25° 2p2 what element is it ? A.) Be B) C C. Ne…

A: Atomic number = number of protons = number of neutrons

Q: What is the average atomic weight for a hypothetical element "Q" which is composed of the following…

A: The following data are given for the hypothetical element Q: The atomic mass of 1st the isotope, M1…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.