In Rutherford’s gold foil experiment, which particle(s) were used? Group of answer choices α-rays α-rays and β-rays α-rays and γ-rays β-rays α-rays, β-rays, and γ-rays

Q: Atoms of which element have existed for the longer period of time hydrogen sodium iron iodine

A: A question about stability of atom, which is to be accomplished.

Q: Why are some atoms radioactive?

A: The radioactive nuclei are unstable and have an excess number of either protons or neutrons in the…

Q: When light with a wavelength of 186 nm strikes the surface of tin metal, electrons are ejected with…

A: The following procedure is shown below for finding binding energy-

Q: What causes light to be emitted from an atom?

A: When we give energy electron it excited into higher energy level then it remain in that higher…

Q: Given the only naturally occurring isotope of arsenic is AsAs-75, determine its mass from the…

A: Isotopes are the elements which have same atomic number and but different mass numbers.  In other…

Q: Given the only naturally occurring isotope of aluminum is Al-27, determine its mass from the…

A: Isotopes of an element are the ones which have the same atomic number but different mass number.…

Q: What is the atomic symbol for isotope barium-131? 131 Ba 58 Ba 131 Ba

A:

Q: How many proto Mass # of Protons Element Element Name Atomic Number # of Neutrons # of Electrons…

A: Fill the  columns with suitable number and symbol--

Q: Atoms are best described by which of the following:     electrons and protons packed densely in the…

A: Atoms are best described by which of the following: Answer :- neutrons and protons packed densely in…

Q: 16) What is the wavelength, in nm, of light with a frequency of 6.70 x 1014 s-1 ?

A:

Q: If an atom of Uranium, Element 92, were to absorb an Alpha particle (comprising two protons and two…

A: For a balanced nuclear reaction sum of mass number and sum of atomic numbers must be same on both…

Q: How did Max Planck explain the fact that metal will glow different colors when heated?

A: Max Planck has studied the emission of light by means of hot objects. He observed a heated metal…

Q: 38 If naturally occurring chromium were made up of only 2 isotopes of Chromium-51 and Chromium-53…

A:

Q: Atoms lose or gain electrons in order to

A: The main concern of an atom is to gain stability.  Stability is gained by attaining octet, which…

Q: Identify the number of Protons, neutrons, and electons in neutral atoms of the following isotopes…

A: Mass number of uranium is 235. It has 92 protons and 92 electrons. Hence number of neutrons = 235-92…

Q: 5. Determine if the following are examples of absorption and/or emission of light. a. A handheld…

A: Answer is given below

Q: Question 5: Use the following diagram to answer from A to C: O minutes 10 minutes 20 minutes 30…

A: Answer :-  (A) 10 minutes  (B) 12.5 g  (C) 40 g…

Q: On the basis of the uncertainty principle, it can be proved that Oprotons exist inside the nucleus…

A: Uncertainty principle proves that :

Q: From the list below, choose the atoms that ONLY have radioactive isotopes. Gold Curium Bismuth…

A: Radioactivity is the property of certain atoms to spontaneously emit particles and/or energy from…

Q: Complete the following chart, in order from left to right Isotope Mass Number Protons Neutrons 19 40…

A: Atomic number= number of protons Mass number = number of protons + number of neutrons

Q: Select all of the following that are isotopes of 28Si.  Group of answer choices 29Si An atom with…

A: Concept introduction. Isotopes are the substance having same atomic number but different atomic…

Q: Henri Becquerel discovered that unstable atoms were giving off small particles/rays. What was coming…

A: Nuclear radiation The emission of elementary particles or energy resulting from the decay of atoms.…

Q: Select the two isotopes of nitrogen-15. carbon-13 O phosphorus-15 N-16 F2 - 15 O-15

A:

Q: Which is larger, a neutron or an electron?

A: A neutron is a neutral subatomic particle present inside the nucleus of an atom, whereas an electron…