The Arrangement of the Periodic Table

Elements on the Periodic Table are ordered according to their

• element name

• element symbol

• number of atoms

• atomic number

What do atoms of the same periodic group have in common?

• They have the same atomic number.

• They have the same chemical symbols.

• The have similar chemical properties.

• They have the same atomic mass.

Protons have a ____________ charge, neutrons have a ____________ charge, and electrons have a ____________ charge.

• positive; negative, neutral

• positive, neutral, negative

• neutral, negative, positive

• negative, neutral, positive

Tags

NGSS.MS-PS1-1

Which group of elements in the periodic table contains only noble gases?

• Group 1
• Group 10
• Group 13
• Group 18

How many valence electrons do the atoms of elements in group 13 have (the Boron Group)?

• 3

• 5

• 8

• 13

Which element is similar in reactivity to Magnesium, Mg, and why?

• lithium, Li, because their in the same group

• Beryllium, Be, because their in the same period

• lithium, Li, because their in the same period

• Beryllium, Be, because their in the same group

Which direction do the groups on a periodic table run?

• up and down

• left to right

• diagonally

• they are scattered

Which direction do the periods runs on a periodic table run?

• up and down

• left to right

• diagonally

• they are scattered

Elements in the same period have the same number of what?

• the number of energy levels

• the number of groups

• the number of valence electrons

• the atomic number

Elements in the same group have the same what?

• the number of energy levels

• the number of protons

• the number of valence electrons and reactivity

• the atomic number