What is the difference between atomic number and atomic mass quizlet?
What is the difference between atomic number and atomic mass quizlet?
Atomic number is the amount of protons in the nucleus. The mass number is the total number of protons and neutrons.
What is the difference between mass number and average atomic mass?
Mass number: The total number of protons and neutrons in an atomic nucleus. Natural abundance: The abundance of a particular isotope naturally found on the planet. Average atomic mass: The mass calculated by summing the masses of an element’s isotopes, each multiplied by its natural abundance on Earth.
What does the atomic number equal?
Atomic number is the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. The number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.
What determines the atomic mass or weight of an atom quizlet?
The atomic number is the number of protons an element contains. The mass number is the sum of protons and neutrons in the nucleus of an atom. Atomic mass is the total mass of an atom, numerically equivalent to the mass in grams of 1 mole of the atom.
What does the atomic mass of an atom tell us?
The atomic mass of an element tells us the number of times an atom of the element is heavier than of the mass of an atom of carbon-12. A unit suitable for the mass of atoms and the mass of subatomic particles is the atomic mass unit (u).
How do scientists determine the atomic mass of an atom?
The easiest way to find the atomic mass is to look it up on a periodic table. The atomic mass for each element is given in atomic mass units or grams per mole of atoms. This value is the average atomic mass of the element. This is because elements may have more than one naturally occurring isotope.
Can the atomic mass be greater than the atomic number?
Yes, the mass number is always a greater value than the atomic number. Atoms are made of electrons, protons, and neutrons. Protons and neutrons together form the nucleus of an atom. While measuring the mass of an atom, we actually measure the mass of the nucleus.
What is atomic weight quizlet?
Atomic weight is the average mass of all isotopes of an atom.
What is the atomic mass number equal to quizlet?
The mass number is equal to the sum of the number of protons and the number of neutrons.
What is atomic mass and how is it determined?
The atomic mass of an atom is the mass of the protons plus the mass of the neutrons. The atomic mass of an element is a weighted average of all the element’s isotopes based on their natural abundance. It is simple to calculate the atomic mass of an element with these steps.
