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 element above it?3.do some elements next to each other have the same number of neutrons?how is that possible?4.how are the colors ...
题目5 Which statements comparing the properties of electrons, neutrons and protons are correct?B neutrons and protons are only electrons and both heavier than electrons neutrons are charged AB CD X 相关知识点: 试题来源: 解析 B 反馈 收藏
Protons and neutrons each weigh 1 atomic unit, while electrons are virtually weightless. Answer and Explanation: Two atoms with the same atomic number but different mass numbers are called b. isotopes To have the same atomic number, the...
Question: Isotopes are atoms of the same element with the same number of protons and a different number of: A. ions B. molecules C. electrons D. neutrons Atoms: Atoms are classified into various types based on differentiated featu...
Electrons form a spinning cloud around the nucleus. Protons and neutrons make up the mass of atoms. Electrons, miniscule compared to the protons and neutrons, contribute very little to the overall mass of atoms.Atoms and Isotopes Atoms of the same element have the same number of protons. All...
Atoms are made from a nucleus of protons and neutrons and a cloud of electrons.A. 正确B
atoms, electrons are elementary particles. This means they are not composed of even smaller particles. Also unlike protons and neutrons, electrons have essentially no mass. Finally, electrons are different from protons and neutrons in that they surround the nucleus instead of being part of the ...
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...
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 element above it?3.do some elements next to each other have the same number of neutrons?how is that possible?4.how are the colors ...
Electrons are locatedoutside of thenucleus of an atom nucleus of an atom The nucleus of an atomconsists of neutrons and protons, which in turn are the manifestation of more elementary particles, called quarks, that are held in association by the nuclear strong force in certain stable combination...