Periodic Table and Atomic Structure Review

All atoms of a specific element have the same number of _______.

• ions

• protons

• neutrons

• electrons

What is oxygen's atomic number?

• 6A

• 8

• 15.994

• O

According to the periodic table of elements, which of the following elements has an atomic number of 24?

• strontium

• manganese

• magnesium

• chromium

Which of the following definitions characterizes an element?

• can be separated through physical means

• contains a basic combination of two or more substances

• can only be broken down by chemical means

• contains only one type of atom

Most of the metals on the periodic table are located

I.on the left

II.in the middle

III.on the right

• II and III only

• I, II, and III

• III only

• I and II only

Based on the periodic table, which of the following groups of elements should have very similar chemical properties?

• potassium (K), aluminum (Al), neon (Ne)

• manganese (Mn), magnesium (Mg), molybdenum (Mo)

• carbon (C), iodine (I), hydrogen (H)

• lithium (Li), sodium (Na), potassium (K)

Where are the 2 most reactive elements found?

• Groups 1 and 7

• Groups 2 and 8

• Groups 2 and 17

• Groups 1 and 2

Where do we find the most stable elements?

• Alkali Earth Metal

• Noble Gases

• Halogens

• Alkali Metals

How many Protons, Electrons, and Neutrons does Platinum have?

Tags

NGSS.MS-PS1-1

How many Protons, Electrons, and Neutrons does Galium have?

Tags

NGSS.MS-PS1-1