Topic 5 Atoms and the Periodic table

Beryllium has how many protons?

• 4
• 9.0122
• 2
• 13.0122

Tags

NGSS.MS-PS1-1

What element is this?

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.MS-PS1-1

What does an atom's period tell us?

• Number of protons
• Number of electrons
• Number of valence electrons
• Number of shells

What does an atom's group tell us?

• Number of protons
• Number of electrons
• Number of valence electrons
• Number of shells

Which of the following element in period 3 would be classified as a metal?

• Boron (B)

• Sodium (Na)

• Argon (Ar)

• Silicon (Si)

Who came up with the model of an atom pictured?

• J.J. Thompson
• Ernest Rutherford
• Neils Bohr
• James Chadwick

Tags

NGSS.MS-PS1-1

Choose ALL that are true of the following equation.

HCl + Na(OH) ---> NaCl + H₂O

• Neutralization reaction

• The product are HCl and Na(OH)

• The equation is NOT Balanced

• Na(OH) is a base

Different isotopes have...

• different masses
• different atomic numbers
• different electrons
• different protons

Tags

NGSS.MS-PS1-1

How many neutrons does a Carbon 13 atom have?

• 6
• 5
• 7
• 8

Tags

NGSS.MS-PS1-1

What is the atomic mass of the pictured isotope?

• 17

• 35

• 18

• 52