Atoms and moles

Question 1

What is different between isotopes of the same element?

Accepted Answer

Number of neutrons

Question 2

How many neutrons does phosphorous (P) have?

Accepted Answer

16

Question 3

If we had 1 mole of each of the following elements, which would have the smallest mass?

Accepted Answer

Lithium (Li)

Question 4

How many protons does potassium have?

Accepted Answer

19

Question 5

How many electrons does tin (Sn) have?

Accepted Answer

50

Question 6

The atomic number tells the number of:

Accepted Answer

Protons

Question 7

What is the molar mass for Tungsten (W)?

Accepted Answer

183.84

Question 8

What subatomic particle is in the orbitals of an atom?

Accepted Answer

electron

Question 9

If we had 1 mole of each of the following elements, which would have the most mass?

Accepted Answer

Hafnium (Hf)

Question 10

What is the charge of a proton?

Accepted Answer

Positive

Question 11

What is Avogadro's number used for?

Accepted Answer

To show the number of things in a mole

Question 12

what particles make up the mass of an atom?

Accepted Answer

proton, neutron

Question 13

Which is not a subatomic particle?

Accepted Answer

Megatron

Question 14

What is the charge of an electron?

Accepted Answer

Negative

Question 15

What is Avogadro's number?

Accepted Answer

6.022 x 1023

Question 16

The atomic mass tells the number of:

Accepted Answer

Protons plus Neutrons

Question 17

What is the charge of a neutron?

Accepted Answer

Neutral

Question 18

If we have a mole of carbon and a mole of bromine, which would we have more atoms of?

Accepted Answer

they'd have the same number

Question 19

Which subatomic particle can be used to identify the element?

Accepted Answer

Protons

Questions 19