10 Grade Chapter 6 The Periodic Table

Mendeleev organized the chemical elements based on their

• symbols

• properties

• atomic numbers

• charges

A horizontal row in the periodic table is called a(n)

• family

• group

• octet

• period

An element with the general electron configuration ns ² np ¹ for its outermost electrons would be in Group

• 2

• 13

• 14

• 15

When a carbon atom is in its ground state, how many electrons does it have in its outermost shell?

• 1

• 2

• 3

• 4

A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound is called

• electron affinity

• electron configuration

• electronegativity

• ionization potential

Which of the following elements has the lowest electronegativity?

• C

• F

• Li

• O

In which period is an element that has the electron configuration 1s ² 2s ² 2p ⁶ 3s ² 3p ⁶ 3d ¹⁰ 4s ² 4p ¹ when it is in its ground state?

• Period 1

• Period 2

• Period 3

• Period 4

Which of the following elements is not a metal?

• H

• K

• Na

• Fr

The metalloids are located on the periodic table between

• halogens and noble gases.

• nonmetals and metals.

• alkaline-earth metals and other metals.

• alkali metals and transition metals.

The halogens are located on the periodic table in Group

• 1

• 2

• 17

• 18