Worksheets8G Science HW#11: Chapter 2.1 and 2.2
Total questions: 10
Worksheet time: 3hrs 30mins
The central core of the atom, containing protons and usually neutrons is called _____.
Nucleus
Molecules
Elements
Valence Electrons
Small positively charged particles that are found in the nucleus of an atom is called _____.
Nucleus
Proton
Neutron
Electron
Small uncharged particles that are found in the nucleus of an atom is called _____.
Nucleus
Proton
Neutron
Electron
Tiny, negatively charged, high-energy particles that move around outside the nucleus of an atom is called _____.
Nucleus
Proton
Neutron
Electron
The electrons that are farthest away from the nucleus of an atom and are involved in chemical reactions is called _____.
Nucleus
Valence Electron
Neutron
Electron Dot Diagram
A representation of the number of valence electrons in an atom, using dots placed around the symbol of an element is called _____.
Pixels
Valence Electron
Polymers
Electron Dot Diagram
An element belonging to Group 17 of the periodic table.
Halogen
Nitrogen Family
Alkaline Metal
Noble Gas
True or False:
Chemical reactions involve the valence electrons of atoms.
True
False
True or False:
Elements in Groups 1 and 17 are less reactive.
True
False
True or False:
Chemical bonds form when electrons are transferred or shared between atoms.
True
False
