Atomic Structure and Periodic Table Review

Master atomic structure & the periodic table with this engaging review worksheet!

Fill in the missing spaces below. ROUND THE ATOMIC MASS! 9 19 9 10 9 Fill in the blanks by clicking on the blank, then choosing the correct term. The number of protons in an atom is known as the atomic number. The atom with an atomic number of 27 is cobalt. In a neutral cobalt atom, the number of protons should be equal to the number of electrons. The atomic massof an atom is determined by adding together the number of protons and neutrons it has in its nucleus. Each atom has different isotopes or versions of itself. Atoms of the same element could never have different numbers of protonsbecause this is the same as the atomic numberwhich identifies the atom. Where is most of an atom's atomic mass? In the nucleus In the electrons cloud Atoms do not have atomic mass It cannot be determined How can you determine an atom's mass number? Add the protons and electrons together Add the protons and neutrons together Add the electrons and neutrons together It cannot be determined Which element is pictured below? Hydrogen Helium Lithium Beryllium Boron Which type of atom is pictured below? Positive ion Negative ion Isotope Neutral atom (not an isotope) What is the mass number of the atom below? 2 4 8 10 12 14 Which element is pictured below? Boron Carbon Nitrogen Oxygen Silicon Fill in the blanks below. Carbon-14 is an isotope. This means it has more or less neutrons. The "14" represents the atom's mass number.Carbon-14 has 6protons and 8neutrons. (Fill with numbers) Click on letters a, b and c and fill in the blank with the correct subatomic particle the atom. electron neutron proton Place the element or property in the correct category: metal, nonmetal or metalloid. Metals Conduct Heat Conduct Electricity Solid at room temperature Malleable Shiny Au (Gold) Mg (Magnesium) Nonmetals Neon (Ne) Poor electrical conductors Poor thermal conductors Brittle solids-not malleable, not ductile Br (Bromine) Little or no metallic luster Metalloids Semi conductors Si (Silicon) Metal in appearance, but very brittle As (Arsenic) Fill in the blanks by clicking on the blank and then choosing the correct answer. The periodic table is an organized table of all of the known elements. The periodic table is organized into rows and columns. The horizontal rows on the periodic table are referred to as periods. There are seven periods. The elements get less and less metallic in their properties as you move from left to right across the periods on the periodic table. The elements to the far right of periodic table are the nonmetals. The vertical columns on the periodic table are known as groups. There are 18 groups. Elements in the same group all have similar chemical properties to one another. The group number indicates the number of valence electrons an atom of an element in that group will have in its outermost energy level.