Create a Macro. Use the SendObject Action. Complete the arguments at the bottom. ie. Object Type: Query, Report, Form, Table, etc.
Object Name: Whatever you have named it
Object Format: The form you wish to have for the attachment, HTML, Excel, etc.
To: Enter the email address and if more than one separate them with semicolons (
The rest is intuitive. Save, name, etc.
In your Form you have created a button to fire off the email. Right click on it to bring up the properties. On the event tab, select the On Click command and move to the right and select the drop down. Select the macro name you created above.