Science Benchmark 1 Review

Shiny luster, conducts electricity, conducts heat, and has a low melting point.

• metal
• nonmetal
• metalloid

Dull luster, does not conduct electricity, does not conduct heat, has a low melting point.

• metal
• nonmetal
• metalloid

Dull luster, conducts electricity, conducts heat, has a high melting point.

• metal
• nonmetal
• metalloid

If a chlorine atom has a mass number of 35, how many protons are in this element?

Tags

NGSS.MS-PS1-1

If a chlorine atom has a mass number of 35, how many electrons are in this element?

Tags

NGSS.MS-PS1-1

If a chlorine atom has a mass number of 35, how many neutrons are in this element?

Tags

NGSS.MS-PS1-1

Since carbon (C) and silicon (Si) are in the same group, they have similar properties. What other characteristic makes them chemically similar?

• they both have 4 valence electrons
• their atoms have more protons than neutrons
• they have the same number of energy levels
• they both have the same number of protons

What is the name of the element?

• carbon
• lithium
• oxygen
• fluorine

Tags

NGSS.MS-PS1-1

What is the name of the element?

• carbon
• lithium
• oxygen
• fluorine

Tags

NGSS.MS-PS1-1

If lithium (Li) belongs to Group 1 and in Period 2, which of the following is in the same period?

• beryllium
• sodium
• magnesium
• potassium