2. Atoms & Elements

Isotopes

미해결 질문
How many protons, neutrons, and electrons make up an atom of nitrogen-15?
989
views
객관식
Which of the following answers give the correct number of subatomic particles for ?
4867
views
32
rank
객관식
An isotope of titanium is represented as 48Ti. How many protons does this isotope of titanium have?
155
views
객관식
Which of the following best describes an isotope?
159
views
객관식
An alpha particle is also referred to as the nucleus of which isotope?
111
views
객관식
If the natural abundance of Br-79 is 50.69%, what is the natural abundance of Br-81?
121
views
객관식
Which isotope of argon has 22 neutrons?
139
views
객관식
Which of the following is the correct isotope symbol for an atom containing 20 protons and 22 neutrons?
126
views
객관식
Two atoms that are isotopes of one another must have a different number of which subatomic particle?
139
views
객관식
An atom has an atomic number of 25 and a mass number of 55. How many neutrons are present in its nucleus?
118
views
객관식
Which of the following correctly represents the isotope of carbon with 6 protons and 8 neutrons in isotope notation?
119
views
객관식
How many neutrons are present in the nucleus of a germanium (Ge) atom with a mass number of 73?
166
views
객관식
Can two atoms with the same mass number ever be isotopes of each other?
188
views
객관식
Which of the following factors directly affects the average atomic mass of an element that exists as a mixture of isotopes?
128
views
객관식
A lithium atom has an atomic number of 3 and a mass number of 7. How many neutrons are in this lithium atom?
723
views