Which atom  is the smallest? A. silicon B. carbon C. phosphorus D. nitrogen

Q: Describe John Dalton's atomic theory?

A: Structure of atom is the significant discovery. Different scientists has proposed different…

Q: Describe the Rutherford's α-particle bombardment experiment. Explain the Rutherford Atomic Model…

A: Solution :      Rutherford's atomic model put forward by Ernest Rutherford to explain the atomic…

Q: Describe Rutherford’s planetary model of the atom.

A: Rutherford model or Rutherford atomic model or nuclear atom, or the planetary model of atom gives…

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: Explain the Components of Atoms?

A: The smallest and fundamental unit of matter, which leads to formation of chemical element is atom.…

Q: How the number of electrons “owned” by an atom is determined ?

A: The number of electrons owned by an atom is determined by calculating the number of bonds and number…

Q: How did they describe atoms in around 450BC?

A: Democritus was the first person to give the concept of the existence of an 'atom'. He was a Greek…

Q: Describe Rutherford’s nuclear model of the atom. What was revolutionaryabout his model?

A: According to the Rutherford atomic model: The positively charged particles and most of the mass of…

Q: Activity type of Alumina (meaning of type I, II, III, etc.) what do the numbers mean?

A: Alumina is a granular and extremely porous form of aluminum oxide. It is available in basic, acidic…

Q: Changing the number of electrons in an atom changes the atom’s..

A: Atomic Charge

Q: A: Where on the periodic table, are the metals located?  B: Where on the periodic table, are the…

A: Periodic table is a table in which all of the elements are situated together. On left side there are…

Q: An element has nine protons and 10 neutrons in the neutral atom. (a) How many electrons are present…

A: Given: Number of protons= 9 Number of neutrons = 10 To find: The number of electrons Atomic number…

Q: Explain how the cathode ray was discovered.

A: Cathode rays are the beam of electrons that are observed in vacuum tubes. They are also called…

Q: Which atoms have the same mass number? Explain the answer.

A: ANSWER IS DISCUSSED BELOW :

Q: What did Ernest Rutherford discover about the structure of an atom ?

A: Rutherford carried out alpha-particles scattering experiment by the bombardment of high speed…

Q: the major portion of an atom's mass consist of

A: Atom Consists generally basic three particle-1. Electron,2.Proton 3. Neutron. there are two part-…

Q: Chemistry midterm A neutron has a mass of and a charge of

A: A neutron is a particle present in the nucleus of the atom. It is a neutral particle having 1 unit…

Q: The isotope of Nitrogen with a mass of 15amu is written as _? The isotope of Uranium with a mass of…

A:

Q: List and explain Dalton's atomic theory (postulates). Explain which postulates were rejected and…

A: John Dalton gave the first postulates about the structure of an atom......

Q: What if Rutherford believed atoms were as Dalton envisioned them? What do you suppose Rutherford…

A:

Q: Describe Rutherford’s nuclear theory?

A: Rutherford, in his experiment, directed high energy streams of α-particles from a radioactive source…

Q: what is the mass of an electron?

A: Electron, lightest stable elementary particle known.

Q: Are two atoms of the same element identical ?

A: Element are pure substance and cannot be break down into other substance by any means that is…

Q: Which scientist developed a model that is still used today to show the number of electrons in each…

A: Bohr model explains an atom as a small and positively charged nucleus surrounded by electrons. These…

Q: does 1 mole of Ba and one mole of Pb have the same mass or a different mass?

A: The molar mass of a substance is equal to the mass of one mole of that substance. One mole of a…

Q: What did John Dalton proposed about the atom?

A: John Dalton atomic model is a postulate that has no experimental basis.

Q: Describe cathode ray tube experiment and draw its diagram

A:

Q: Rutherford’s gold foil experiment gave scientists clues to the composition of the atom. One thing…

A: In Rutherford's Gold foil experiment,  proved that atom composed with two things - - 1) positively…

Q: Which information did Millikan contribute to the understanding of electrons?   A:He determined that…

A: Millikan's Oil Drop experiment - The oil drop experiment was performed by Robert A. Millikan and in…

Q: Describe Rutherford’s model of the atom.

A: To find: The description about the Rutherford's model of the atom

Q: What are some characteristics of the “space” inside an atom?

A: According to Dalton's atomic theory,  Matter is buildup by small particles called atoms  Atoms are…

Q: what is atomic mass? how is it computed

A: what is atomic mass? how is it computed?

Q: 1. Which scientist discovered the quantized nature of electrons? а. Bohr d. Planck b. Dalton e.…

A: Electron has quantized nature.

Q: Why Rutherford’s model could not explain the stability of an atom?

A: Models for electrons- J.Thomson in 1897 discovered electron with the help of cathode ray tube…

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: Describe Rutherford alpha scattering experiment

A:

Q: 19. Draw an atom (not actual size). Label your drawing as completely as possible.

A: An atom is the fundamental unit that forms an element. They are very small and contains a nucleus at…

Q: Describe the motion of the particles from A to B

A: The Time-Temperature graph has temperature on the vertical Y-axis and time on the horizontal X-axis.…

Q: The nucleus of an atom has a positive charge.

A: Answer - Atomic nuclei consist of electrically positive protons and electrically neutral neutrons.…

Q: If you wanted to change the atomic number in the simulation, changing the number of which particle…

A: An atom contains the subatomic particles like Electrons, Protons and Neutrons. The subatomic…

Q: atoms which has the largest mass?

A: Till now periodic table contains 118 elements

Q: Based on the bohr model explain the location of the lithium element on the periodic table. Why is it…

A: Answer

Q: elements will gain electrons

A:

Q: Nitrogen (N), has two naturally occurring isotopes: N-14 that has a percent abundance of 99.63 % and…

A: The atomic mass of Nitrogen = ( mass of N-14 X percent of N-14 + mass of N-15 X percent of N-15) /…

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.