Ch. 1/Ch. 1&2
The name of the group that contains magnesium (Mg).
What is alkaline Earth metals?
Convert 150 mL to L.
What is 0.15 L?
Number of protons in phosphorous (P)
What is 15?
Longer wavelength: IR or X-ray
What is IR?
Greater atomic size: P or Cl
What is P?
Water boils: physical or chemical.
What is physical?
The density of a species 20 mL and 10 g.
What is 0.5 g/mL?
Mass number for neon (Ne) with 12 neutrons?
What is 22?
Greater energy: gamma rays or radiowaves
What is gamma rays?
Greater size Ca or Ca+2
What is Ca?
Has particles that vibrate in position: solid, liquid or gas.
What is a solid?
Number of sig figs: 0.03020
What is 4?
Molar mass of water (H2O) in whole numbers.
What is 18 g/mol?
n = 2 --> n = 4: requires or gives off energy
What is requires?
Greater ionization energy: S or Se
What is S?
Sugar dissolved in water: element, compound, heterogeneous, or homogeneous.
What is homogeneous mixture?
What is gram?
Amount leftover of 30 g substance after two half-lives.
What is 7.5 g?
The number of electrons in S-2
What is 18?
Greater electron affinity: Co or Ni
What is Ni?
Sodium sulfate: element, compound, heterogeneous, or homogeneous.
What is compound?
Number of sig figs: 3.2 x 10-2
What is 2?
Number of electrons in neutral magnesium (Mg).
What is 12?
The electron configuration of: Be
What is 1s2 2s2?
Tricky: greater electron affinity: F or Ne
What is F?