Atomic Structure and the Periodic Table Review

Which particles make up the nucleus of an atom?

• protons and neutrons

• electrons and protons

• electrons, protons, and neutrons

• electrons and neutrons

An element with a mass number of 10 and an atomic number of 6 has how many protons?

• 5

• 8

• 6

• 10

An element's identity is determined by the number of

• electrons.

• protons.

• neutrons.

• valence.

Looking at the Bohr model for Argon (Ar). How many energy levels does it have and number of valence electrons?

This Bohr model of Argon (Ar) shows that Argon has ​a ​

​ ​ (a)   energy levels and ​ (b)   valence electrons.

• 8

• 3

• 4

• 18

Tags

8.5a

The current model of the atom that is used today is called the ​ (a)   . The model that was used previously is called the ​ (b)   . The difference between these models is the arrangement of the ​ (c)   .

• electron cloud model

• bohr model

• electrons

• planetary model

• plum pudding

• protons

• neutrons

Match the subatomic particle with its charge

• Positive

• Electron

• Negative

• Neutron

• Neutral

• Proton

Electrons have a ​ (a)   charge.

Protons have a ​ (b)   charge.

Neutrons have ​ (c)   charge

• negative

• positive

• no or neutral

Tags

NGSS.MS-PS2-3

Protons are found in the ​​ (a)   of an atom

• Nucleus

• Electron Shells

• Orbitals

Use the element tile for Sulfur (S) to match the elements with their correct label.

• Sulfur

• Element Name

• S

• Mass Number

• 32

• Atomic Number

• 16

• Element Symbol

Tags

8.5a

What is the atomic mass for the following elements. Remember to round your answer.

Zinc ​ (a)  

W ​ (b)  

Lead ​ (c)  

Xe ​ (d)  

• 66

• 184

• 207

• 131

• 56

• 40

• 205

• 108