GCSE 1.6 Periodic Table

How did Mendeleev arrange the elements in the Periodic Table?

• By atomic number

• By atomic weight (mass)

• Alphabetically

• By density

What did Mendeleev leave in the Periodic Table to predict properties of undiscovered elements?

• Extra rows

• Extra columns

• Gaps

• Symbols

What is an element described as in the Periodic Table?

• A substance that consists of multiple types of atoms

• A substance that consists of only one type of atom

• A mixture of different substances

• A compound of different elements

What is a group in the Periodic Table?

• A horizontal row

• A vertical column

• A diagonal line

• A cluster of elements

What is a period in the Periodic Table?

• A vertical column

• A horizontal row

• A diagonal line

• A cluster of elements

What properties are used to distinguish metals from non-metals in the Periodic Table?

• Color and shape

• Conduction of heat and electricity, ductility, malleability, melting point, and sonority

• Size and weight

• Reactivity and stability

What do elements in the same group in the Periodic Table have in common?

• The same number of protons

• The same number of neutrons

• The same number of electrons in their outer shell

• The same atomic mass

What is a characteristic of alkali metals?

• High density

• Low density

• Non-reactive

• Non-metallic

What happens when Group 1 (I) metals react with water?

• They produce hydrogen and a metal oxide

• They produce hydrogen and a metal hydroxide

• They produce oxygen and a metal hydroxide

• They produce carbon dioxide and a metal oxide

What happens to an atom of an alkali metal when it reacts?

• It gains an electron to form a negative ion.

• It loses an electron to form a positive ion.

• It gains a proton to form a positive ion.

• It loses a proton to form a negative ion.