However, one type of potassium atom contains 20 neutrons, another 21 neutrons, and still another 22 neutrons. 但钾原子的三种原子分别含有20个,21个,22个中子。 isotopes 同位素 Atoms with the same number of protons but different numbers of neutrons are called isotopes. Mass of isotopes Isotopes con...
(atoms with) same number of protons/atomic number/of same element different number of neutrons/different mass number/different nucleon number [21(ii) Which two of the six atoms shown are isotopes of each other?EAND G..[1]...(iii) Why do isotopes have identical chemical properties?they...
If an atom were about as big as a baseball stadium, the nucleus would be the size of a pea in the very center and the electrons would be somewhere on the outside edge.What makes an atom of gold different from an atom of iron is the number of protons, neutrons, and electrons inside...
25 Which of the following statements about atoms and ions is correct? C A The nucleon number of an element is the number of neutrons. B The number of neutrons and electrons are the same in an atom. C An atom with atomic number of 5 will lose 3 electrons to form a positive ion. D...
Nuclear Symbols Nuclear Symbol - used to represent atoms and their isotopes Isotopes – atoms with the same atomic number but different atomic masses due to different number of neutrons Nuclear symbols tell us: The element (ex. uranium) top number is the mass number # protons + # neutrons bot...
What does it mean to say that two atoms are isotopes of each other? Isotopes are atoms of the same element with the same number of protons but different number of neutrons. What part of the atom contains practically all its mass? nucleus What did Chadwick discover? the neutron關於...
(Not accepted: same number of protons) Deuterium has1more neutron than hydrogen. (Not accepted: different number of neutrons)[11: correct number of shared electrons [1] correct number of valence electronsThe mass number of chlorine is the average mass of the two isotopes of chlorine,chlorine-...
Isotopes are atoms of the same element with different numbers of neutrons. The isotopes of hydrogen are represented as: 1 2 3 H H H . 1 1 1 Isobars are atoms with the same mass number but different atomic numbers. As a result, isobars are different elements. Isotopes are more commonly...
-experimental and theoretical atomic, molecular, and nuclear physics, chemical physics -the study of atoms, molecules, nuclei and their interactions and constituents (protons, neutrons, and electrons) -quantum theory, applications and foundations -microparticles, clusters -exotic systems (muons, quarks,...
atoms of the same element w/different #s of neutrons are called isotopes. in order to know how many neutrons in an atom you must be told. the mass number tells you how much mass t 13、he atom has. since p+ and n0 are the heavy parts, mass # = # of p+s + n0s.question: if...