How do atoms of different elements differ? What are atoms and elements, and how do they differ? How does a molecule differ from an atom? How does an ion differ from an atom? How do isotopes of a given element differ? What is the difference between a molecular element and an atomic ele...
How do atoms of different elements differ? What are atoms and elements, and how do they differ? How is an atom different from an element? How do the atoms of a molecule stay together? Why do atoms react with other atoms? How are atomic number and protons related? How does an atom dif...
Because all atoms are neutral, the number of protons and electrons in an atom must be equal. 因为所有的原子都是电中性的,因此质子数与电子数一定是相等的。 figure 4.15-0 Thus, once you know the atomic number of an element, you know the number of protons and the number of electrons an ato...
• The different manifestations of the same atom that vary only in neutron number are called isotopes. The proton-plus-neutron number of a given isotope is given using a left superscript next to the element symbol. This atom could therefore be represented by 18 proton balls (pink) and 22 ...
This is because the periodic table is arranged according to the number of electrons in the outermost "shell" of an atom, and ions are formed with atoms either lose or gain electrons so that their outer shells are full. Each "group" of the periodic table is associated with a different ion...
1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period ...
The number of protons in an atom of any given element is always the same. Physicists call this the atomic number. So, in the above example of lead, its atomic number is 82 and that does not change; if it did, it would be a different element (thallium, atomic number 81, or bismuth...
The electrons within an atom are so miniscule compared to protons and neutrons that their mass is negligible. The carbon-12 atom, which is still used as the standard today, contains six protons and six neutrons for an atomic mass of twelve amu. Different isotopes of the same element (same ...
atoms are the basic unit of particles. An atom contains a nucleus (consisting protons and neutrons) and some electrons moving around the nucleus. If o atoms have the same number of protons they are the same element. There are about 117 elements have been found or synthesized. ...
000 deaths in local residents and emergency workers. He began to feel that nuclear wasn’t so risky after all. Ord now hosts a pro-nuclear podcast and runs a small advocacy organization known as Americans for Nuclear Energy; hisTwittername includes an emoji of an atom and a lightning bolt....