Forms hard water: Calcium Hydroxide Sodium Carbonate Potassium Hydroxide Sodium Hydroxide 88. Which of the following statements about atomic structure is FALSE? The number of protons and neutrons is always the same in the neutral atom The electrons occupy a very large volume compared to the nucleus Almost all the mass of an atom is concentrated in the nucleus. The protons and neutrons in the nucleus are very tightly packed

Q: Consider this ionic isotope. The identity of the element is missing. 35 22- 16 Which three…

A: We have to choose the identity of the missing elements from the given options.

Q: 3. If "Ga and "Ga occur in the %'s 62.1 and 37.9, calculate the average atomic mass of gallium…

A: Solution of question 3 Given, The abundance of 69Ga = 62.1% The abundance of 71Ga = 37.9% Formula…

Q: I have to explain why this question is incorrect as I put the wrong answer for this and explain why…

A: Given , Heavier isotope has = 42 neutrons Gi2+ ha  40 electrons

Q: Consider the isotope nickel-60 which has the following nuclear symbol, nickel-60.  Which statement…

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Q: A sample of the element Phosphorus is shown to have a mass of 33 and a charge of -3. How many…

A: The atom of an element is made up of sub-atomic particles. The major sub-atomic particles of an atom…

Q: 109. Fill in the blanks to complete the table. Number of Number of Number of Symbol A Protons…

A: An element consists of three sub-atomic particles. These are protons, neutrons and electrons.

Q: A radioactive isotope of chromium, Cr-51, can be used to label red blood cells in your body. Which…

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Q: There are only two naturally-occuring stable isotopes of lithium. The mass and natural abundance of…

A: The average atomic mass of an element is equal to the sum of product of the masses of the isotope…

Q: 110. Fill in the blanks to complete the table. Number of Number of Number of Symbol A Protons…

A: The table is given below,

Q: This table is all about ions. If you're not told the ionic charge, make it what charge to forms when…

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Q: There are only two naturally-occuring stable isotopes of copper, the masses of which are listed in…

A: Answer:

Q: What is an atom? O It is composed of protons and electrons but not neutrons O It is the smallest…

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Q: Rank the subatomic particles from lowest to highest mass. A electrons = protons < neutrons B…

A: Subatomic particles are the particles that make up atoms. They are smaller than atoms and are…

Q: 1. strong base 2. D₂O

A: Answer:Due to resonance stabilization of the conjugate base of ketone its is acidic in nature and…

Q: 8. Complete the chart below on the composition of each neutral and charged atom below: number of…

A: Number of protons = Atomic number Number of electrons in neutral atom = Atomic number  Number of…

Q: An element has a mass number of 20, it has 9 neutrons and has lost an electron. Write the isotope in…

A: Concept based on the mass number of an isotope, writing out the electronic configuration of ions and…

Q: Complete the following table.

A: Symbol number of protons number of neutrons number of electrons atomic number mass number net charge…

Q: a How many protons and neutrons are contained in the nucleus of the isotope below? Assuming the atom…

A: Calculate the number of protons, neutrons and the electrons in the given symbol of the element. Use…

Q: A manufacturer begins with 15.00 kg15.00 kg of cinnabar and produces 12.93 kg12.93 kg of elemental…

A: Since you have posted multiple questions, we are entitled to answer the first clear question only.…

Q: Complete the blanks in the table. Element 12C 13C 14C 16C 16C2-ion 180 23 Na 23 Nation Number of…

A: An atom consist of electrons, protons and neutrons.In case of neutral atoms, number of electrons =…

Q: The number of subatomic particles represented by : Au*+ 197 O 79 Protons, 118 Neutrons, 79 electrons…

A: Applying formula  A=Z+n

Q: Fill in the gaps in the following table:

A: Atomic Number = Number of Protons  Mass Number = Number of Protons + Number of Neutrons Symbol -…

Q: Magnesium (Mg) combusts in air to give a brilliant white light that has been used in photographic…

A: Mass of Mg = 10.0 g Molar mass of Mg = 24.305 g/mol Heat produce when 1 mol reacted = -601.6 KJ/mol…

Q: There are only two naturally-occuring stable Isotopes of chlorine, the masses of Periodic Table to…

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Q: Fill in the blanks to complete the table.  Complete the sixth column of the table by giving the…

A: The atomic number of any atom refers to the number or count of protons present in the nucleus of…

Q: Which statement is NOT a part of Dalton's atomic theory? The atoms of each element are unique.…

A: we know dalton's atomic theory According to dalton's theory, all matter, the element or compound and…

Q: Write the complete symbol, including mass number and atomic number, for each atom. contains 28…

A: Atomic number: The atomic number (represented by the letter Z) of an element is the number of…

Q: The protons and neutrons of three carbon isotopes are shown. Carbon-12 Carbon-13 Carbon-14 Which…

A: 1.) Isotopes are elements which have same atomic number but different mass number. Isotopes of an…

Q: Consider a hypothetical case in which the charge on a proton is twice that of an electron. Using…

A: Answer: Potassium-39 means, its mass number is 39. Also neutron is always a neutral particle.

Q: 3. Fill in the blanks. Add any missing symbols and'or numbers to the ateomic symbol. (Assume all…

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Q: Question 10 If the average atomic mass of rubidium (Rb) in the meteorite is 85-377 amu, determine…

A: We have find out the percent abundance of each isotope in the meteorite.

Q: why is this the correct answer when potassium has 15 protons not 19?

A: Atomic symbol of an element X is described in manner :  AZX where A is mass no. Z is atomic no. Mass…

Q: Beryllium has an atomic number of 4. Which of the following statements is true of a neutral…

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Q: The atomic number of an element is the total number of which particles in the nucleus? protons and…

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Q: . An element contains Z = 8 and A = 17. What is its mass number? 2. If an atom contains 8 protons,…

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Q: One difference between carbon-12 (C) and carbon-14 ( (C) is that carbon-14 has

A: The atoms with the same number of protons but the different number of neutrons or mass number are…

Q: If you wanted to make an accurate scale model of the hydro- gen atom and decided that the nucleus…

A: No, the end result will not be much smaller than 106 mm. This is because it is an hypothetical model…

Q: Diane, Timothy and Ira were having a discussion about isotopes and the tendency to react. Which do…

A: Please find your solution below : Isotopes are the atoms of same element that have same number of…

Q: Which I'm not part of dalton atomic model ? Elements are composed of minute, indivisible particles…

A: Given statements,         Elements are composed of minute, indivisible particles called atoms…