Chemical element

True The half-lives of uncertain isotopes vary from milliseconds to billions of years. The combining of pieces is known as nuclear fusion. Multiple resource (271)mints) The man responsible for discovering that the atom is mostly space is Rutherford false financial controversy concerning matter is totally matter contains mass. The true statement concerning the atomic gist is It is do up of electrons only. The component part has how many protons? 7 has how many neutrons? 146 Which statement is true? Isotopes of a given element have very alike(p) chemical properties. The atomic number of an atom is equivalent to the number of protons Rutherford coined the confines used for the simplest positive charged particle and called it the neutron An alpha particle is an electron Select all that apply. In the vertical columns of the periodic table All the physical properties are identical.The number of positive charges in the nucleus of an atom is equal to its atomic number Most of the mass of an atom is made up of The protons and neutrons Movement of electrons about a central nucleus is a concept by Boor Periodicity is best defined as The repeating nature of physical and chemical properties with increasing The last element in any period always has eight electrons in the outer(prenominal) energy level The maximum number of electrons in a p sub-level is 3 The 3 in up represent TTS the number of electrons image the element that corresponds to the following electron configuration. 2 , as , up northeast 22 61 What does the p mean in Is as the p nail What causes the lines in the spectrum for elements? None of the above What is the maximum number of electrons instal in any shell of the known elements? 8 A top dog quantum number refers to The numbered energy levels starting from the nucleus outward 2 2 The electron configuration of En is Is In the vertical columns of the periodic table, as the atomic numbers increase The numbers of electrons in the valence shell in crease.