Atoms & the Periodic Table

Based on the data, which number shows the correct location of the element with 2 valence electrons and 3 energy levels.

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

The neutral atom with 9 protons is also going to have...

*hint* use the mass on your periodic table for neutrons!

• 10 neutrons and 10 electrons

• 9 neutrons and 9 electrons

• 10 neutrons and 9 electrons

Tags

NGSS.MS-PS1-1

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

Tags

NGSS.HS-PS1-8

How many neutrons does calcium have?

• 20

• 40

• 60

• 0

Tags

NGSS.MS-PS1-1

Which two subatomic particles make up the nucleus of an atom?

• Protons and Electrons
• Neutrons and Electrons
• Electrons and Protons
• Protons and Neutrons

Tags

NGSS.MS-PS1-1

How many valence electrons does the element have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

This element has two valence electrons and two energy levels?

• Beryllium (Be)

• Lithium (Li)

• Zinc (Zn)

Tags

NGSS.HS-PS1-1

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

What is the main difference between an ionic and a covalent bond?

• Ionic bonds involve the sharing of electrons, while covalent bonds involve the transfer of electrons.

• Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

• Ionic bonds only occur in metals, while covalent bonds occur in nonmetals.

• There is no significant difference; the terms are interchangeable.

Isotopes of an element have the same number of __________ but different numbers of __________.

• protons, neutrons

• neutrons, protons

• electrons, neutrons

• electrons, protons