Periodic Table..

What is Kr?

• Potassium

• Krypton

• Chlorine

• Krapti.

Atomic number of Ga?

• 31

• 12

• 4

• 45

Tags

NGSS.MS-PS1-1

30-29= what element?

• Lawrence

• Lead

• Hydrogen

• Mercury

3rd element?

• Potassium

• Arsenic

• Xenon

• Lithium

How many periods or rows on the periodic table?

• 5

• 8

• 7

• 9

Who invented the periodic table?

• Dmitri Mendeleev

• Rosa Parks

• Thomas Edison

• Albert Ghisoro

Which element has the highest electronegativity

• Flourine

• Copper

• Nitrogen

• Silver

Tags

NGSS.HS-PS1-2

Positive partical?

• Neutrons

• Electrons

• Protons

• Pizza

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Most of the mass of an atom is found it its?

• electron cloud
• nucleus
• atomic number
• house