CHEMISTRY GLOSSARY element element Element is a substance that cannot be decomposed into simpler substances. In an element, all the atoms have the same number of protons or electrons, although the number of neutrons my vary. Citing this page: ...
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
What element has 10 electrons?Atomic Number:Each known chemical element listed on the periodic table of elements has an atomic number. The atomic number is equal to the number of protons that are present in one atom of that element.Answer and Explanation: ...
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 ...
simply adding the number of protons and neutrons. The atomic mass of fluorine is equal to 19 amu (atomic mass unit); its nucleus contains 9 protons and 10 neutrons, adding them together gives 19. Theatomic numberis the number of protons present in the nucleus; fluorine's atomic number is...
ICSEC - Grade 09 - CHEMISTRY - Atomic Structure And Chemical Bonding - Q23
For example, the mass number of a carbon atom with 6 protons and 6 neutrons in its nucleus is 12. Isotopes 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 ...
[Kr]4d^{10} What is the element that forms a 3+ ion with electron configuration (Ar)3d^6? What is the electron configuration of the element with 27 protons? What atom could have the electron configuration of 1s^2 2s^2 2p^3? Which element or ion has the electron...
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
An element is a type of atom, and atoms typically have three components: positive protons, neutral neutrons, and negative electrons. What is the element definition in chemistry? An element is a substance made up of only one type of atom, all with the same number of protons. Gold offers a...