Atoms 0.0 / 5 ? ChemistryAtomsGCSEOCR Created by: lmao.disposable.loserCreated on: 31-05-16 20:01 Where is the nucleus? In the middle of the atom. 1 of 19 What does the nucleus contain? Protons and neutrons 2 of 19 What is the charge and why? It is positively charged because of the protons. 3 of 19 How much of the mass of the atom is there and where is it concentrated in? Almost the whole mass of the atom is concentrated in the nucleus. 4 of 19 In comparison to the rest of the atom, how big is the nucleus? Tiny 5 of 19 What do the electrons do? They move around the nucleus. 6 of 19 What is the charge of electrons? They are negatively charged. 7 of 19 Although electrons are small, what do they do? They cover alot of space. 8 of 19 How can we determine how big the atom is? The volume of the electron's orbit. 9 of 19 How much mass do electrons have? They have virtually no mass. 10 of 19 What are they arranged in? They are arranged in shells around the nucleus. 11 of 19 What charge to neutral atoms have? No charge overall. 12 of 19 The charge on the electrons is the same size as what? As the charge on the protons. 13 of 19 Number of protons are always equal to what? They are always equal to the number of electrons in a neutral atom. 14 of 19 What is the atom called when neutrons are added or removed? When the atom becomes charged, it is a neutral atom. 15 of 19 What do we know about the number of neutrons? It isn't fixed but is usually the same as the number of protons. 16 of 19 How do we determine what an element is? The number of protons in an atom decide what element it has. 17 of 19 If helium has 2 atoms, what does this tell us about other 2 atomed elements? It must be the element Helium. 18 of 19 Why do elements have different properties from each other? This is due to differences in the atomic structure. 19 of 19
Comments
No comments have yet been made