SC1 Test Review

Which is a halogen?

• Helium
• Chlorine
• Oxygen
• Neptune

Tags

NGSS.HS-PS1-1

24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?

• 74.92 amu
• 24.97 amu
• 75.01 amu
• 74.51 amu

Which of the following will have a lower ionization energy than Scandium (Sc)?

• Helium (He)
• Titanium (Ti)
• Calcium (Ca)
• Magnesium (Mg)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....

• decreases
• increases
• remains the same
• none of the above

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Tags

NGSS.HS-PS1-1

Which element is pictured?

• neon
• fluorine
• magnesium
• argon

Tags

NGSS.HS-PS1-1

In 1s², the 1 means

• there is 1 electron

• the electrons are in the 1st energy level

• the shape is circular

• there is a -1 charge

Tags

NGSS.HS-PS1-1

Which subatomic particles contribute the most to the mass of an atom? (SC1.a)

• Protons, Neutrons, Electrons

• Protons only

• Protons and Electrons

• Protons and Neutrons

If an atom has 12 positively charged subatomic particles, which of the following must it also have to be considered a neutral atom? (SC1.a)

• 12 neutrons

• 12 electrons

• 12 protons

• 24 protons and neutrons

Tags

NGSS.MS-PS1-1

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number. (SC1.a)

• 20

• 10

• 5

• 25

Tags

NGSS.MS-PS1-1