Intro to Chemistry

Which component of an atom increases or decreases when you have a different isotope?

• Protons
• Neutrons
• Electrons
• Nuclei

Tags

NGSS.HS-PS1-8

An atom's atomic number is equivalent to the number of what?

• Protons
• Neutrons
• Electrons
• Ions

all matter is made of what

• energy

• atoms

• electrons

• compounds

• I do not know

Tags

NGSS.MS-PS1-1

atoms that have a net positive or negative electrical charge are known as?

• ions

• compounds

• molecules

• buffer

• I do not know

What is the atomic number of this atom?

• 1
• 3
• 4
• 7

Tags

NGSS.HS-PS1-1

What is the mass number of this atom?

• 1

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

An element has the mass number 12 and atomic number 6. The number of neutrons in it is:

• 6

• 10

• 4

• 8

Tags

NGSS.HS-PS1-8

If an atom has 10 electrons, how many protons does it have?

• 0

• 1

• 10

• 5

Tags

NGSS.MS-PS1-1

When one atom loses an electron and becomes positive and another atom gains an electron and becomes negative, they stick together like magnets. What is this called?

• ionic bond
• covalent bond
• molecular bond
• atomic bond

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-3

Two atoms are sharing electrons so that both can completely fill their outer shell with the maximum number of electrons. What is this called?

• ionic bond

• covalent bond

• molecular bond

• atomic bond

Tags

NGSS.HS-PS1-2