Identify element X in the reaction (type in just the symbol as given in the Periodic Table): X+p =n+ 37Ar

Q: C) Justify each of the followings: 1) Nitrogen is very unreactive 2) Graphite conducts electricity…

A: (1) Nitrogen  is very unreactive as it contains a triple bond between it in the case of a molecule…

Q: Is energy emitted or absorbed when the following electronictransitions occur in hydrogen? (a) from n…

A:

Q: Co

A: Isotopes : if two same element have same atomic number but atomic masses are different then we can…

Q: Calculate A E in kilojoules per mole for the following reaction: 230 Th→ He + 6 Ra 90 Atomic masses:…

A: The reaction considered is alpha decay of Th-230. 230Th90 -----> 4He2 + 226Ra88 The energy change…

Q: what is chemical formula created when calcium (20) bonds with the polyatomic ion hydrogen phosphate.

A: A chemical formula is a representation of a molecule that uses chemical symbols to indicate the…

Q: Ph 2. (Across) Heaviest element that a star can fuse. (symbol) Ph 4. (Across) In IUPAC naming this…

A: Since you have asked multiple questions that are different, we will solve only one question for you…

Q: Which of the following is considered to be radioactive isotope of hydrogen? Also give the names of…

A: Amongst the three isotopes of hydrogen, 1H is the most stable isotope with abundance of 99.98%. 2H…

Q: Calculate the weight needed to prepare 0.5 liter of 0.1M potassium chloride (KCI) given that the…

A: Given that, Concentration of KCl solution required =  0.1 M Volume of KCl solution required = 0.5…

Q: Calculate the packing fraction, mass defect and energy released in the formation of the argon atom.…

A: The packing fraction, mass defect and energy released in the formation of the argon atom are to be…

Q: Which of the following elements would be expected to be particularly stable? 37 O 17 40 Ca O 20 38 K…

A: A multiple choice question based on octet rule, which is to be accomplished.

Q: Calculate the mass (in grams) of O2 that isproduced by photosynthesis when 2.49 × 104 kJ of solar…

A:

Q: what mass of sodium is also produced?

A: Given :- 2Na3N → N2 + 6Na  Mass of N2 produced = 29.7 g  To calculate :-   Mass of sodium (in g)

Q: III. What is the neutron-proton ratios of following elements? Which of the elements will be more…

A: In this question, we will determine the Neutron/Protons ratios for these three Element then Identify…

Q: For question 16 to 18, refer to the following Periodic Table. a h i k e d 16. Which of the following…

A: Periodic table is arrangement of elements on the basis of atomic masses.

Q: Write an equation for the radioactive decay of beryllium-7 ( ) by an electron capture.

A: The answer is given as follows

Q: Claim True / False Why 6 2 f(x) The hydrogen to oxygen mass ratio in C24H42O21 is 2 to 1. One mole…

A: No of Hydrogen in C24H42O21 = 42  No of Oxygen in C24H42O21 = 21 Molar Mass of Hydrogen = 1 g/mole…

Q: How are Deuterium and tritium are useful/

A: Deuterium and tritium both are isotopes of element hydrogen. Furthermore, deuterium has atomic mass…

Q: The elements of group 1 are reactive but those of griup 18 are inert, why?

A:

Q: What is the energy change when the temperature of 14.9 grams of gaseous hydrogen is increased from…

A: Given- Mass of hydrogen = 14.9 g Initial temperature = 23.5 oC Final temperature = 37.6 oC To find-…

Q: What type of decay would you expect tritium, 3H to undergo? Write the nuclear equation for the…

A: To find: The type of decay and the nuclear equation for the decay

Q: 3. The blue color in fireworks is due to copper (I) chloride , (CuCI), is heated at a temperature of…

A: Energy is related to wavelength by the following relation. Energy = hcλwhere,h=6.6×10-34Js=Planck's…

Q: Determine the balanced reaction of element A (white circles) with element E (gray circles) as…

A: According to the question, wight circles represent element A, gray circles represent element B. From…

Q: Which of the following is the correct Lewis diagram showing the compound formed from sillcon (14)…

A:

Q: What isotope of radium (Ra) is converted into radon-222 by x emission?

A: Ra is radioactive element. A radioactive element undergoes nuclear reactions such as beta emissions…

Q: What is the kinetic energy, in J, of (a) an Ar atom moving at a speed of 650 m/s, (b) a mole of Ar…

A:

Q: In the following set, indicate the most reactive element. P     Ar      S

A:

Q: Use Einstein’s equation, the mass in grams of 1 amu, andthe relation between electron volts and…

A: Given: Mass difference, ∆m = 1amu Energy equivalent of a mass difference of 1amu is calculated as…

Q: The 18O:16O abundance ratio in some meteorites is greater than that used to calculate the average…

A: The average atomic mass formula is given as: Average atomic mass=∑i=1n(Atomic mass of an isotope x…

Q: Iodine (I) would have chemical properties most similar to which of the following elements Te Rb…

A: Generally we know In periodic table there are 7 periods and 18 groups. Now in a group, all elements…

Q: How many core electrons does nickel contain? O 26 O 18 O 2

A: How many core electron in Nickel ?

Q: Fusion describes the process of * two small atoms joining together to produce one larger atom…

A: Solution,  The above question belong to nuclear chemistry. Fusion is that process in which two or…

Q: Discuss the application of thorium as a source of nuclear fuel

A: Thorium can also be used as alternative source of nuclear fuel due to following applications: There…

Q: What is the cosmic importance of unstable ⁸Be?

A: Cosmic rays are high-energy ionizing radiations found in the electromagnetic spectrum of radiations…

Q: what is iodine 131 electronic arrangement

A:

Q: What charge would exist on chlorine (#17) after it reacts with hydrogen (#1)?

A: The correct option is(d) i.e partial negative. The electronegativity of H = 2.20  The…

Q: 19 - Which of the given elements has similar properties with iodine (I) A) Br B) Te C) Ar D)…

A: Generally, the elements of a given group have similar properties due to similar general electronic…

Q: 18 19 20 21 22 23 Write the electron configuration for a carbon anion with a charge of -1. 0 ? X 24

A:

Q: Deuterium (chemical symbol - D) is a heavy isotope of hydrogen, H. Despite having an extra neutron…

A: Given : D2 reacts similar to that of H2.

Q: Using a periodic table complete the following Big Bang Nucleosynthesis Reactions. a. p + b. 2H +p →…

A: NUCLEOSYNTHESIS The process by which a nucleon (protons+neutrons ) forms new nuclei. There are two…

Q: Write balanced equations of the following reactions and identify the x.             1.  8034 Se…

A: In the balanced nuclear reactions, the total atomic number and the total mass number should be the…

Q: Whether or not the process is observed in Nature, which of the following could account for the…

A: The transformation of carbon-10 to boron-10 occurs in two way:

Q: Q5: The percentage composition of fuel is carbon to hydrogen ratio is 18, H = 5% , O = 2%, S 0.4%, N…

A:

Q: Identify element X in 118 x 50- O Te O Sn Pb none of the above

A: Atomic and mass number of given elements are,

Q: Predict the chemical formula for the ionic compound formed by Hg₂²⁺ and CO₃²⁻

A: The type of chemical bonding that consists of the electrostatic interaction of oppositely charged…

Q: Where does the 2.303 come from?

A:

Q: How many hydrogen atoms are in 1.0 g of H20 (MW = 18)? %3D

A: Given :- amount of H2O = 1.0 g  Molar mass of H2O = 18 g/mol  To calculate :-  Total hydrogen atoms…

Q: All of these following elements or compounds are chemically unreactive, except: Krypton O Carbon…

A: Given we know about the rectivety of the atoms All of these following elements or compounds are…

Q: X-rays over dose very dangerous because the interaction causes ionization of atom a, B and y…

A: 1) We say that x-rays are "ionizing rays" meaning that they have the unique capability to remove…