From the results of his gold foil experiment, Rutherford concluded that   Group of answer choices A. electrons have a charge of -1.6 x 10-19 C. B. atoms contain roughly equal numbers of neutrons and protons. C. atoms are composed of a small, dense nucleus surrounded by a cloud of electrons. D. alpha particles are helium nuclei

Q: Antimony (Sb) has two naturally occurring isotopes: Sb-121 that has a percent abundance of 57.21%…

A: Given: Isotope of Antimony (Sb)  % abundance  Sb-121.  57.21%.  Sb-123. 42.79%.

Q: You have discovered a new element - Bluehenium (Bl).  It has two naturally occurring isotopes 68Bl…

A:

Q: Aluminum has 13 electrons, 13 protons and 14 neutrons a) What is its atomic mass? b) What is its…

A: The atomic number of aluminium is = 13 The number of protons in the aluminium is = 13 The number of…

Q: Using the data below, determine the missing mass of (19 9)F (atomic weight = 18.9984):  mass of…

A: For given element 9F19 we have to calculate out the missing mass of element upto four decimal using…

Q: The element cubidium (Rb) has two isotopes. 85 Rb. has an Otomic maS3 Of 84.911789 87 Rb has an…

A:

Q: What are the main ideas in Dalton’s atomic theory?

A: Dalton was a well-known experimentalist and his significant studies on behaviours and properties of…

Q: A sample of magnesium is found to contain 78.70% of 24Mg atoms (mass 23.98 amu), 10.13% of 25Mg…

A: The atomic mass of an element is the average of masses of all the isotopes of that element present…

Q: Chemistry: Fundamentals and Principles Davidson presented by Macmillan Learning For each set of…

A: For a neutral atom, Atomic number = Number of protons = Number of electrons and Mass number = Number…

Q: Which statements are consistent with Dalton’s atomic theory as it was originally stated? Why?a.…

A: Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and…

Q: lectrons-Neutrons.pdf + 107% Element/ Atomic Mass Number Ion Number Atomic Mass Protons Neutrons…

A: The complete table for the above question is given below :

Q: Go Figure What is the charge on the particles that form the beam? Will they beattracted to or…

A: Basic unit of matter is atom. Study of atom was done by many scientists. Each scientist made some…

Q: Recall the history of the development of atomic theory from Democritus to Dalton to Mendeleev

A: Democritus a Greek philosopher knew that if a stone is cutted into two halves , then these two…

Q: Which statements are inconsistent with Rutherford’s nucleartheory as it was originally stated?…

A: Given statements, a. Since electrons are smaller than protons, and since a hydrogen atom contains…

Q: What is the most massive part of an atom? A. Protons B. Nucleus C. Area outside the nucleus D.…

A: We know that an atom contains three subatomic particles - electrons , protons and neutrons.…

Q: 5. List the three subatomic particles and their properties.

A: To find: The list of three subatomic particles and their properties.

Q: Using this information along with the information in the table, calculate the % abundance and the…

A:

Q: Two isotopes of boron occur naturally, with B at 19.90 % (10.01 amu) and B at 80.10 % (11.01 amu). ▼…

A: We knew that the avarage weight of any element is equal to avarage weights of all naturally…

Q: What is the atomic mass unit? a mass of a carbon atom b mass of a hydrogen molecule c (1/18) of…

A: What is the atomic mass unit?

Q: 1) a. Define mass number of an atom with examples. b.what is nucleus and electron of an atom?

A: Mass number is  the sum of the numbers of protons and neutrons present in the nucleus of an atom.

Q: Directions: Use the clues to fill in the words. Words can go across or down. Letters are shared when…

A: ACROSS  2. Nucleus 5. Gold  6. Rutherford

Q: Neutron was discovered by *

A:

Q: ACROSS 2. Rutherford discovered that electrons orbit this atomic structure 5. Rutherford used…

A: Rutherford model was proposed by Ernest Rutherford in 1911. And cathode ray experience was done by…

Q: 9. What observations in the gold foil experiment made Rutherford conclude that atoms are mostly…

A: 9. The answer is option no. (B) Most alpha particles passed through the gold foil undeflected. 10.…

Q: From the experiments of JJ Thomson, which of the following is not one of his conclusions?   Group of…

A: From the experiments of JJ Thomson, which of the following is not one of his conclusions

Q: 2. How would you describe the nucleus of an atom? A. dense, positively charged B. large, positively…

A: To describe : Nucleus of an atom.

Q: Rutherford's gold foil experiment determined that A) neutrons are in the nucleus. B) electrons have…

A: Rutherford bombarded the alpha particles on the very small sheet of gold. He observed that most of…

Q: A cube of gold that is 1.00 cm on a side has a mass of 19.3 g.A single gold atom has a mass of 197.0…

A: Atoms are packed orderly in a defined crystal lattice that is assumed to have any shape such as…

Q: 25. Which determines the speed of a molecule? * a. Its kinetic energy b. The amount of the molecules…

A: Multiple choice questions : 25-28

Q: The nucleus of an atom accounts for most of the size and mass of the atom. O very little of the size…

A: According to Dalton's atomic theory, compound is formed by combining elements and it's also based on…

Q: 9. What does the atomic number on the periodic table indicate about an atom of that element? A the…

A: Option A will be correct.

Q: Mass #: sum of protons (+) and neutrons Net Charge: difference between # of protons (+) and # of…

A: Given table is represented as follows:

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

A: The variants of a certain element due to difference in the number of neutrons present in them are…

Q: Which scientist developed the "plum pudding" model of the atom? Spherical cloud ´of positive charge…

A: J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively…

Q: Which pair of particles has the same number of electrons?

A: Total electrons in a cation = atomic number - total positive charge  Total electrons in an anion =…

Q: (a) Assuming the dimensions of the nucleus and atomshown in Figure 2.10, what fraction of the volume…

A: In order to find the fraction of the volume occupied we first write down the given data: From the…

Q: accomplishments

A:

Q: Which pair correctly matches an element to its atomic number? O a) 9.012 - Be O b) 12.01 - C c)…

A: The atomic number of an element is equal to the total number of protons in the nucleus of the…

Q: er scientists knew that atoms contained charged subatomic pa the masses of the particles are…

A: using the mass data expressed in grams in the table calculate how many times more massive a proton…

Q: Outline Rutherford’s Gold foil experiment, including the observations and conclusions from his…

A: The arrangement of electrons, protons and neutrons inside the atoms is explained by different atomic…

Q: True of False. T/F Electrons are much lighter than neutrons. T/F Some atoms have more electrons…

A: We know , mass of neutron = 1.67×10-27 Kg mass of electron = 9.1×10-31 Kg

Q: 14 Which types of subatomic particles are found inside the nucleus of an atom?

A: Any atom is  made of three kinds of subatomic particles : Proton, positively charged Neutron, is…

Q: 1. If an atom has a radius of 100 m, it would approximately fill a football stadium. a. what would…

A: a) If an atom has a radius of 100 m, it would approximately fill a football stadium. What would the…

Q: Which statement below best explains why Ernest Rutherford was expecting the alpha particles to pass…

A: In Rutherford's alpha particle scattering experiment, the alpha particles are deflected from their…

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

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.