Biochem Quiz

What makes up the nucleus of an atom?

• proton and electron

• proton and neutron

• electron and neutron

• proton, electron and neutron

Tags

NGSS.HS-PS1-8

What is the charge on a proton?

• +1

• -1

• 0

What is the charge on an electron?

• +1

• -1

• 0

TRUE OR FALSE Lithium and Beryllium have the same number of valence electron.

• TRUE

• FALSE

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does Na have?

• 1

• 5

• 6

• 11

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following describes covalent bonds?

• Bonds form because of opposite charges

• electrons are shared to fill outer electron shells

• Electrons are transferred between atoms

• Covalent bonds are magical

Tags

NGSS.HS-PS1-1

Valence electrons are the...

• Innermost electrons
• Middle electrons
• Outermost electrons
• Any electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An ionic bond is the attraction between:

• oppositely charged ions
• similarly charged ions
• neutral ions
• neutral atoms

The octet rules states that most elements want to have _____ valence electrons.

• 2

• 4

• 6

• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Electronegativity is...

• how good an atom is at attracting electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

Tags

NGSS.HS-PS1-2