Periodic Table and Periodic Trends

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

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The atoms along the staircase are called 

• metals

• nonmetals

• metalloids

• noble gases

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Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

Atomic radii trends is . . . .

• generally decrease along each period of the table, and increase down each group.

• generally increase along each period of the table, and increase down each group.

• generally increase along each period of the table, and decrease down each group.

• generally decrease along each period of the table, and decrease down each group.

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NGSS.HS-PS1-1

Match the following periodic trends to the element with the highest value for that trend.

• helium

• Atomic radius

• cesium

• Electronegativity

• fluorine

• Ionization Energy

Match the trend with the correct definition

• Atomic Radius

• The energy required to remove an electron from an atom.

• Reactivity

• The strength of attraction between an atom's nucleus and the electrons in that atom.

• Electronegativity

• The distance from the center of an atom and the furthest electron. This is a measure of an atom's size.

• Ionization Energy

• The likelihood that that an atom will participate in a chemical reaction

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Electronegativity trends is . . . .

• increases on passing from left to right along a period, and decreases on descending a group.

• increases on passing from left to right along a period, and increases on descending a group.

• decreases on passing from left to right along a period, and decreases on descending a group.

• decreases on passing from left to right along a period, and increases on descending a group.

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Which element has higher electronegativity?

• Fluorine is higher than Oxygen

• Potassium is higher than Sodium

• Aluminium is higher than Boron

• Phosphorus is higher than Chlorine

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The Modern Periodic Table of Elements is arranged by

• atomic mass

• atomic number

• valence electrons

• number of isotopes

Which is a halogen?

• Helium

• Chlorine

• Oxygen

• Neptune

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