Elements Basics

What is the Periodic Table?

• a chart that lists all the molecules that exist in the universe

• a chart that shows all the elements scientists have discovered

• a chart that shows all the compounds found in the world

• a chart that shows what time periods elements were discovered in

Tags

NGSS.MS-PS1-1

What is the periodic table primarily used for?

• Calculating molecular weights

• Organizing chemical elements based on their properties

• Measuring the temperature at which elements melt

• Determining the solubility of substances

Which element is located in Group 1 and Period 2 of the periodic table?

• Helium

• Lithium

• Neon

• Sodium

What do elements in the same group of the periodic table have in common?

• Same number of protons

• Similar chemical properties

• Same atomic mass

• Same number of neutrons

How many periods are there in the periodic table?

• 7

• 10

• 12

• 5

Which of the following elements is a noble gas?

• Chlorine

• Argon

• Bromine

• Oxygen

Elements in Group 2 of the periodic table are also known as:

• Alkali metals

• Halogens

• Alkaline earth metals

• Transition metals

Which period does the element Iron (Fe) belong to?

• Period 3

• Period 4

• Period 5

• Period 6

What characteristic decreases as you move from left to right across a period in the periodic table?

• Atomic radius

• Reactivity with water

• Number of protons

• Melting point

Which group in the periodic table contains only nonmetals?

• Group 1

• Group 17

• Group 12

• Group 3