A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it? What element has 53 protons and 74 neutrons? If an atom with a mass number of 202 has 122 neutrons, it is an atom of which element?
also called the inert gases, did not react with anything. However, the element fluorine is so highly reactive that it actually can react with these elements. An elements reactivity is highly dependent on its natural stability created by the number of protons, neutrons, and electrons in each ato...
What element has 6 valence shell electrons and 16 protons? Which of the elements in the following periodic table are actinides? In period 2 of the periodic table, which group contains the element with the highest first ionization energy? a. alkali metals b. alkaline earth metals ...
No of electons in M^(2+) ion =10 Atomic numbr of element M= 10 + 2 = 12 No of protons in element M=12 Mass number of element M = No of protons + No of neutrons =12+12=24 The element M with atomic numbr 12 is magnesium (Mg)
1-Electron configuration for Cl^{-} 2- What is the atomic symbol for the noble gas that also has this electron configuration? An ion from a given element has 11 protons and 10 electrons. What is the charge on the ion? What is th...
Every element has a unique atomic number. This is the number of protons in the nucleus of each atom. What is the atomic number of this helium atom? A neutral atom must have equal numbers of protons and electrons, so the atomic number of an element also gives ...
So... for the element of MAGNESIUM, you already know that the atomic number tells you the number of electrons. That means there are 12 electrons in a magnesium atom. Which atom is the largest? Cesium (Cs), tucked in the lower left hand corner of the table, has the largest known atoms...
Electron has a minimal mass compared to protons and neutrons. The mass of an Electron is so small it's almost negligible. 6 Neutron Neutron can result in different isotopes of the same element. Carbon-14 has two more Neutrons than Carbon-12. 4 Electrons Electron orbits the nucleus in specif...
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
Electrons are negatively charged particles orbiting an atom's nucleus, essential for chemical bonding, while protons are positively charged particles within the nucleus, determining the element's identity.