Periodic Table
What group and period is the element Nitrogen in?
Period 2 Group 15
How many ml in a liter?
1000 ml
What is the smallest particle of an element that retains the characteristics of the element called?
atom
What does x equal?
2x+6=y-2
y=5x-4
4
Where are metals located on the periodic table?
Left and Middle
A chemistry student weighs a block of metal and finds its mass to be 3.6 kilograms. What is the mass of the block in pounds?
7.938 pounds
How do you find the number of neutrons?
Which of the following elements is a noble gas?
A)Mg
B)H
Ci)He
D) Li
E)F
He
Group 8A
What is a metalloid element?
have properties like metal and non-metal
A beaker contains 4,750 milliliters of water. Convert this volume into liters.
4.75L
True or False:
Protons and Neutrons are located in the nucleus of an atom
True
Which of the following pairs of numbers have the larger number written first?
I. 7.2×10^3 and 8.2×10^2
II. 0.00052 and 6.8×10^-3
III. 1250 and 3.4×10^2
A) I, II, and III
B) I and II
C) I and III
D) II and III
E) only III
C: I and III
What type of element is a Bromine and what happens when this type of element reacts with a metal?
Halogen and forms salt
Anna ate 6.5 tacos with 14 ml of hot sauce on each. The density of hot sauce is 6.7 g/ml. How many grams of hot sauce did Anna consume?
609.7 grams
Define cation and anion
cation (positive charge, more protons than electrons)
anion (negative charge, more electrons than protons)
What elements are in hydroxyapatite, Ca5 (PO4)3OH, a major compound in human bones and teeth?
Calcium, phosphorus, oxygen, and hydrogen
How many days are in 46,100,524 seconds?
533 days