Subatomic Particles
What are the three main subatomic particles that make up an atom?
What is protons, neutrons, and electrons?
Who proposed the first atomic model, which suggested that atoms were indivisible?
Who is John Dalton?
What does the atomic number of an element represent?
What is the number of protons in an atom?
What is an isotope?
What is an isotope is a atom of the same element with a different number of neutrons, which results in a different atomic mass?
What is the smallest unit of an element that retains the properties of that element?
What is an atom?
Which subatomic particles has a positive charge?
What is proton?
What atomic model did J.J. Thomson create, where the atom was described as a “plum pudding” with electrons embedded in a positively charged substance?
What is Thomson's Plum Pudding Model?
What does the atomic mass (or mass number) of an atom represent?
What is the total number of protons and neutrons in an atom?
If a carbon atom has 6 protons and 8 neutrons, what is its isotope name?
What is Carbon-14?
Which part of the atom has the most volume?
What is the electron cloud?
Which subatomic particles has no charge?
What is neutron?
Who proposed the nuclear model of the atom, with a dense, positively charged nucleus at the center and electrons orbiting around it?
Who is Ernest Rutherford?
If an element has an atomic number of 8, how many protons does it have?
What is 8 protons?
Are isotopes of the same element chemically identical?
What is yes, because they have the same number of protons and electrons?
Atoms are mostly made of empty space. True or false?
What is true?
Which subatomic particle has a negative charge?
What is electron?
Which scientist is credited with creating the Bohr model, which shows electrons moving in fixed orbits around the nucleus?
Who is Niels Bohr?
What is the atomic mass of an element with 6 protons and 6 neutrons?
What is 12?
What happens to the mass of an atom when it has more neutrons than protons?
What is the mass of the atom increases?
The element with the smallest atomic number is hydrogen. How many protons does hydrogen have?
What is 1 proton?
Which subatomic particles determines the chemical behavior of an atom?
What is electron?
What is the current model of the atom, which describes electrons as being found in orbitals, regions around the nucleus where the probability of finding an electron is highest?
What is Quantum Mechanical Model?
What is the relationship between the number of protons and electrons in a neutral atom?
What is in a neutral atom, the number of protons equals the number of electrons?
Why are isotopes important in carbon dating?
What is carbon isotopes, like carbon-14 decay over time, and by measuring the remaining amount of carbon-14 in a sample, scientists can estimate the age of organic material?
What percentage of an atom’s mass is located in the nucleus?
What is about 99.9%