What Element Has 7 Protons 7 Neutrons and 10 Electrons
The nucleus is in the middle of the atom and contains protons and neutrons. For a neutral atom the number of protons is exactly equal to the number of electrons. First 20 Elements Storyboard By Oliversmith The mass number is the total number of protons and neutrons in one atom of an element. . Atoms are composed of 3 kinds of small particles. Carbon-12 or 12 C contains six protons six neutrons and six electrons. These smaller particles - the protons neutrons and electrons - all have different properties. Some elements such as carbon potassium and uranium have multiple naturally-occurring isotopes. Draw three electrons in the second energy level and label them with their charge. These are called ions. Atoms must have equal numbers of protons and electrons. Draw two electrons in the first energy level and label them with their charge. For atoms with 4 valence electrons it can go either way. ...