Significant Figures
How many significant figures are in this number?
194.0
What is 4 significant figures
What element is this based on the electron configuration?
1s2 2s2 2p4
What is Oxygen
Which group of the periodic table is Carbon (C) in?
What is group 14
Give one of the properties of the alkali metals (group 1).
What is Soft metals, Low density, Low melting points, Very reactive with water.
Which Scientist is responsible for the planetary model?
Who is Neils Bohr
Give the answer to the equation, rounded to the correct number of significant figures.
0.003 * 5.01
What is 0.02
What element is this based on the electron configuration?
1s2 2s2 2p6 3s1
What is Sodium
What period is potassium (K) in?
What is period 4
What group are the Noble gasses in?
What is group 18
How many shells do you need in a Bohr model for an element with this electron configuration?
1s2 2s2 2p6 3s2
What is 3 electron shells
Give the answer to the equation, rounded to the correct number of significant figures.
530 +20.1
What is 550
Write the electron configuration for Beryllium (Be).
What is 1s2 2s2
What group can I find the Alkaline Earth metals in?
What is group 2
How many valence electrons does Phosphorous (P) have?
What is 5 valence electrons
How many electrons should be drawn for the element Aluminum?
What is 13 electrons
Give the answer to the equation, rounded to the correct number of significant figures.
769.009 - 28.000928
What is 741.008
Write the electron configuration for Chlorine (Cl).
What is 1s2 2s2 2p6 3s2 3p5
Give the group and period for Xenon (Xe).
What is group 18, period 5
Which category of elements have the following characteristics:
Slow to react, Good conductors of heat and electricity., Usually hard and tough but they can be hammered or bent into shape easily., High melting points, High densities.
What are transition metals
Draw a Bohr model for Oxygen.
What is 8 protons, and 8 neutrons in the nucleus, with 8 electrons orbiting (shell 1 has 2 electrons, shell 2 has 6 electrons)
Give the answer to the equation, rounded to the correct number of significant figures.
4561.546 / 0.34
What is 13000
Write the electron configuration for Silver (Ag).
What is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d9
Give the group and period for Iron (Fe).
What is group 8, period 4
What group has the following properties:
Form acids when combined with hydrogen, Fairly toxic, Readily combine with metals to form salts, Have seven valence electrons in their outer shell, Highly reactive and electronegative.
What are the halogens
Draw a Bohr model for Calcium.
What is 20 protons, 20 Neutrons in the nucleus and 20 electrons orbiting (shell 1 has 2 electrons, shell 2 has 10 electrons, shell 3 has 8 electrons, and shell 4 has 2 electrons)