Matter and Energy STAAR

Which subatomic particle has a mass of 0, a negative charge, and is located outside of the nucleus?

• Protons

• Neutrons

• Electrons

• Atoms

Tags

NGSS.MS-PS1-1

Which subatomic particle has a mass of 1 AMU, a neutral charge, and is located inside of the nucleus?

• Protons

• Neutrons

• Electrons

• Atoms

Tags

NGSS.MS-PS1-1

Which subatomic particle has a mass of 1 AMU, a positive charge, and is located inside of the nucleus?

• Protons

• Neutrons

• Electrons

• Atoms

Tags

NGSS.MS-PS1-1

What is the atomic number of this element based on the picture of the bohr model?

• 9

• 10

• 7

• 1

Tags

NGSS.MS-PS1-1

What characteristic is the most important information to know when trying to determine the identity of an element?

• Protons

• Mass

• Neutrons

• Electrons

Tags

NGSS.MS-PS1-1

What characteristic determines an element's chemical properties such as reactivity?

• Number of Electrons

• Number of Valence Electrons

• Number of Protons

• Group Number

Look at the picture. Which element is the most reactive?

• Sodium

• Neon

• Chlorine

Tags

NGSS.MS-PS1-1

How many TOTAL atoms are in the chemical formula?

• 4

• 5

• 6

• 0

Tags

NGSS.MS-PS1-1

How many molecules are in the chemical formula?

• 2

• 9

• 8

• 4

Tags

NGSS.MS-PS1-1

Which of the following is not evidence that a chemical reaction took place?

• Gas Produced

• Unexpected Color Change

• Change in Energy (Light or Temperature)

• Change of size or shape

Tags

NGSS.MS-PS1-2