Circle your responses to questions 7-12. 7. Atomic radius decreases as you travel (up, down) and to the (left, right). 8. Atomic radius increases as you travel (up, down) and to the (left, right). 9. Electronegativity decreases as you travel (up, down) and to the (left, right). 10. Electronegativity increases as you travel (up, down) and to the (left, right). 11. lonization energy decreases as you travel (up, down) and to the (left, right) 12. lonization energy increases as you travel (up, down) and to the (left, right).

Atomic radius decreases as you travel up and to the right. As you move up the periodic table, you're closer to the positive charge of the nucleus, while moving right means you're gaining protons which also pulls the electrons in closer. Ionization energy increases as you travel up and to the right. Higher ionization energy means that it requires more energy to remove an electron, which is a trend you see because the smaller the atom (moving right and up), the stronger the attraction between the nucleus and the electrons, making them harder to remove.