Atomic structure and periodic table

Question 1

How many more protons does an atom of Fluorine have than an atom of Boron?

Accepted Answer

4

Question 2

The negatively charged particles which travel around the outside of an atom are called _______.

Accepted Answer

electrons

Question 3

What is the answer

Accepted Answer

16

Question 4

Helium and most nonmetals are found in which area of the periodic table?

Accepted Answer

the table has repeated cycles

Question 5

What is the atomic number for iodine?

Accepted Answer

53

Question 6

How many protons does an atom of potassium contain?

Accepted Answer

19

Question 7

Chlorine and fluorine are in the same family & they have similar properties. Which is correct?

Accepted Answer

Chlorine and fluorine are in the same group

Question 8

All ________ except mercury are solids at room temperature.

Accepted Answer

metals

Question 9

Which statement about noble gases is correct?

Accepted Answer

They rarely form compounds in nature

Question 10

Lithium has a relative atomic mass of ____________

Accepted Answer

6.94

Question 11

Which of the following categories of elements represents most of the periodic table?

Accepted Answer

hydrogen

Question 12

Elements were arranged in order of increasing atomic mass on Mendeleev's first periodic table.

Accepted Answer

True

Question 13

single horizontal portion of the periodic table, as shown below, is called _____.​

Accepted Answer

a period

Question 14

What is the name of the element with 92 protons in it's nucleus?

Accepted Answer

Uranium

Question 15

What is the chemical symbol for copper?

Accepted Answer

Cu

Question 16

Helium and most nonmetals are found in which area of the periodic table?

Accepted Answer

on the left-most side

Question 17

What is the name of the group 17 on the periodic table ?

Accepted Answer

halogens

Question 18

What are two properties that make a metal a good choice to use as a wire in electronics?

Accepted Answer

ductility and conductivity

Question 19

Which of the following categories of elements represents most of the periodic table?

Accepted Answer

metals

Question 20

What is the atomic mass of Nitrogen ?

Accepted Answer

14.01

Questions 20