Read each of the following statements very carefully. Then decide if the statement is CORRECT or WRONG. If the statement is WRONG, EXPLAIN why you think the statement is WRONG. (a) When the fire alarm rings continuously, leave the building and go to wait at an assembly point (b) Br has 45 neutrons (c) The molecular formula of sodium chloride is NaCl

Q: Purple spheres represent iodine atoms, white spheres represent hydrogen atoms, and all of the…

A: Given:  Purple atom = Iodine (I) White atom = Hydrogen (H)

Q: determine the  abundance in nature of each isotope in percent.

A:

Q: The number of atoms in 1 dm3 of aluminum is nearly the same as the number of atoms in 1 dm3 of lead,…

A: Density of a substance is given by the ratio of mass and volume of the substance. Write the…

Q: During nuclear decay a 238 U atom can break apart into a helium 4 atom and one other atom. Assuming…

A: In the problem statement it is given that 238U undergoes nuclear decay to give a helium-4 atom and…

Q: Which of the following are poor conductors of heat and electricity? O Transition elements O Halogens…

A: Elements can be classified into 3 forms, that is metals, non-metals, and metalloids. Metals are the…

Q: In which of these compounds are there twice as many Oxygen atoms as Hydrogen atoms?

A: To find :- The compound having oxygen atoms two times more than the hydrogen atoms.   We can easily…

Q: If a sample of lithium contains 2.50x10* atoms of lithium-7 and 2.00×10 atoms of lithium-6, what is…

A: Given sample contains  Li-7=2.5×104 atomsLi-6=2×103 atoms

Q: The atomic weight of bromine is 79.904, yet no atom of bromine weighs 79.904 amu. Why is this true?

A: Given : The atomic weight of bromine is 79.904, yet no atom of bromine weighs 79.904 amu.

Q: What would the correct name for BaS, 4H20 be?

A: BaS2 . 4 H2O  To give the name to the compound , we have to see the number of different atoms…

Q: An unknown element X has the following isotopes: 140X (89.00% abundant) and 142X(11.00% abundant).…

A: Since,         Average Atomic mass=Σass of Isotope×% of Isotope100

Q: Iron exists in nature as a mixture of predominantly three isotopes: 26Fe (53.94 amu), 56 neFe (55.93…

A:

Q: The chemical formula for calcium bicarbonate is: Ca(HCO,), Са How many carbon atoms are in each…

A:

Q: An unknown element X has the following isotopes: 126X (22.00% abundant), 128X (34.00% abundant),…

A: These are three isotopes of element X are given .Calculate the average atomic mass of X in…

Q: How many moles of aluminum do 6.00*10^24 aluminum atoms represent?

A:

Q: What mass of nickel would contain 5.66 x 1021 atoms?

A:

Q: 2. Water is made of two elements, hydrogen, and oxygen. What possible elements could substitute for…

A:

Q: Complete the following table. Put the full symbol, e.g. 37^Cl- symbol 605^W^8+ 37^Cl-   protons…

A: To complete the table, symbol 605W8+ 37Cl-   protons     5 neutrons     5 electrons      5…

Q: the correct name for CuSO4·5H2O is could you explaining to me how to read and understand the…

A:

Q: Glycine, one of the essential amino acids, has two carbon atoms, five hydrogen atoms, twO oxygen…

A: From given  Gylcine has 2 carbons (C2), five hydrogen (H5) 1 Nitrogen (N) and 2 Oxygens (O2) atoms.

Q: The chemical formula for the amino acid glycine is CHŞNO2. Which of the following statements about…

A: Which of the statement is false ?

Q: Natural gallium, which has an atomic weight of 69.7230 amu, consists of gallium-69 and gallium-71…

A:

Q: A platinum atom has a radius of 177 pm. If you could string platinum atoms like beads on a thread,…

A: Given that, Radius of Pt-atom = 177 pm =177×10-12 m= 177×10-10 cm =1.77×10-8 cm Length of necklace =…

Q: 22. As in question 21 determine the mass % of N (nitrogen atoms) in ammonia (NH3), urea (CHẠN2O) and…

A: Mass percent is the mass of the element divided by the mass of the compound or solute.

Q: compound M2O3 is 30.06% oxygen, where M is an unknow metal. The element represented by M is?

A:

Q: What if a new element, Tyserium (Ty), was discovered and was found to have two isotopes, Ty-331…

A: Average atomic mass can be calculated by using the formula: MTy=(% abundance of of…

Q: How many Atoms are there in 6H2O

A: The given chemical compound is H2O. The name of the compound is water.

Q: Which of the following elements is a metal?   phosphorus nitrogen strontium fluorine argon

A: To find: The element that is metal

Q: 3. What type of substances are magnesium chloride, sodium chloride, and calcium chloride?

A: The question is based on the concept of chemical bonding. we have to identify the nature of…

Q: If a sample of a difference compound decomposes into 0.429g of carbon and 0.57g of oxygen,what is…

A: The mass of carbon and oxygen are given as 0.429 g and 0.57 g. The ratio of mass of Oxygen and…

Q: Which of the following compounds is a nonelectrolyte? Select one: O a. acetic acid, CH3COOH b.…

A: A nonelectrolyte is a substance that will not form ions when dissolved in water and therefore the…

Q: Describe what you think happens on an atomic scale when you push a pencil across a piece of paper…

A:

Q: Hydrogen and oxygen react to form water, together they are a  .... - molecule - compound -…

A: Hydrogen and oxygen are atoms that combine to form water

Q: The chemical formula for calcium bicarbonate is: Ca(HCO,), How many carbon atoms are in each formula…

A: Chemical formula represents each compound with a symbol for each element present in it followed by a…

Q: Identify as true (T) or false (F): | Minerals separating from flowing water as stony deposits…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: why is that in Pb(CrO4)2, the charge of CrO4 is -2

A: The species lead Pb can have the potential to show +2 and +4 oxidation state because the outermost…

Q: An unknown element X has the following isotopes: $2X (84.50% abundant), 49X (8.00% abundant), 5°X…

A: Given element has three isotopes Isotope - 1 : 52X Mass number (A1) = 52 Percentage abundance (X1) =…

Q: A fictitious element only has two naturally occurring isotopes: X and Y. If isotope X has a mass of…

A:

Q: An unknown element X has the following isotopes: ⁵⁸X (68.00% abundant), ⁶⁰X (26.00% abundant), ⁶²X…

A:

Q: An element's most stable ion forms an ionic compound with bromine, having the formula XBr3. If the…

A: Given: 1) Ionic compound with bromine is=XBr3 2) Mass number of an element is = 225 3) Number of…

Q: . Titanium has five common isotopes: "Ti (8.00%, 45,983 amu), 47TI (7.80%, 46.988 amu), 11 S.4%,…

A: Note: If you do not mention the questions that need to be solved, the answer provider will…

Q: An unknown element X has the following isotopes: 12°X (22.00% abundant), 128X (34.00% abundant),…

A: Given that element = X, With three isotopes. X-126, X-128 and X-130. The percentage abundance are:…

Q: 2. With a mass spectrometer, it can be determined that the mass 13C/mass 12C is 1.0836129. Determine…

A: Since the Ratio of atomic masses is given we will multiply the weight of 12 C carbon to get the…

Q: How many electrons and neutrons (n) are in a neutral magnesium-26 atom?

A: Atomic number of a neutral atom is equal to the number of electrons or number of protons present in…

Q: Since 1983, pennies have been made with zinc and plated with copper. Prior to 1983, pennies were…

A: Since from 1793-1837 pennies were made up of pure copper therefore, if you had a penny from 1800…

Q: How many protons, neutrons, and electrons does 79se2-  ion?

A: Se or selenium comes under carbon family. Selenium is a metalloid(an element intermediate in…

Q: How many Hydrogen atoms are there? 4H,0

A: We have given that  No. Of mole of H2O = 4  1 mole water contain 2 mole hydrogen atom and 1mole of…

Q: Imagine that you are given information about an element X which has two naturally occuring isotopes.…

A:

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.