百度试题 结果1 题目6 An atom of element Q contains 19 electrons, 19 protons and 20 neutrons.What is Q? B A calcium B potassium C strontium D yttrium 相关知识点: 试题来源: 解析 B 反馈 收藏
百度试题 结果1 题目10 An isotope of element Y has 19 protons and 20 neutrons in its nucleus. Which is the symbol for the ion of Y? B2039A YB19192039C YD1919 相关知识点: 试题来源: 解析 B 反馈 收藏
Describe the structure of an atom.An atom consists of a nucleus, which contains protons and neutrons, surrounded by electrons. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge. The number of protons determines
ICSEC - Grade 09 - CHEMISTRY - Atomic Structure And Chemical Bonding - Q23
Thefluorineelement is a chemical species that has a total of nine protons and ten neutrons in its nucleus.Protonsare positively charged entities whileneutronsare neutrally charged entities; both of which are condensed together in the center of the atom to form a nucleus. Theatomic massis the mas...
8.My heart, that amphibian, moving that moment between two elements: one, excitement; the other, fear. 9.Two very important elements in our lives on earth are carbon and nitrogen, and we would also need them on Libra. 10.Every time we add one or more protons and enough neutrons to ke...
Although all atoms of an element have the same number of protons in their nuclei, they may not all have the same number of neutrons. Atoms of an element with the same mass number make up an isotope of the element. All known elements have isotopes; some have more than others. Hydrogen,...
What element has 6 protons, 8 neutrons, and six electrons? What element has 4 protons 5 neutrons and 2 electrons? Which element has 16 neutrons, 15 protons, and 15 electrons? What element has the atomic number 7? What element has atomic number 26? What element has the atomic number 28?
In chemistry, how can one tell if an element is able to be paired with another element? Are there any elements in neutron stars, and if so what are they? How do you show the number of protons and neutrons on a Bohr-Rutherford diagram?
The neon element symbol is Ne. It has the atomic number 10. So, in the neon atom, the number of protons and electrons is 10 each. The mass number of neon is 20 amu. So, the number of neutrons in the neon atom is 10.View Video Only Save Timeline Video Quiz Course 25K ...